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Volume 56, page 930

Physical Review Letters published “Atomic Force Microscope” by Gerd Binnig, Calvin F. Quate and Christoph Gerber on 3 March 1986. The journal had received the manuscript on 5 December 1985.

The listing names a “Christopher Berger.” The co-author was Christoph Gerber, an IBM Zurich researcher then on leave in California.

A stylus that could read insulators

The instrument combined scanning-tunnelling-microscope and stylus-profilometer principles so that insulating surfaces, not merely conducting ones, could be examined at atomic scale. The paper proposed sensing forces as small as 10⁻¹⁸ newton.

The prototype balanced a diamond tip on a strip of gold foil 25 micrometres thick and 0.8 millimetres long, with an STM tip behind the cantilever reading its tunnelling current — not the reflected laser familiar from later AFMs.

What the measurements showed, and did not

The authors reported preliminary measurements made in air rather than a theoretical proposal alone: roughly 30 ångström lateral resolution and better than 1 ångström vertical.

Sub-ångström vertical sensitivity is not the same as lateral atomic resolution, and the paper did not show individually resolved atoms.

The three were also not all IBM scientists, as the article behind the listing has it: Quate was at Stanford and also affiliated with Xerox PARC.

Which March day?

FDA’s current approval record dates marketing approval of the 100 mg oral Retrovir capsule — zidovudine, also called AZT — to 19 March 1987. It was the first FDA-approved antiretroviral drug for AIDS.

A contemporary FDA talk paper issued on 9 April 1987 instead said the drug became approved on 20 March, which is where many historical accounts and this listing get their date. The discrepancy sits inside the agency’s own paperwork.

A much narrower label than “HIV/AIDS”

The initial indication did not cover everyone with HIV. It applied to certain adults with symptomatic HIV infection — AIDS or advanced AIDS-related complex — who had a confirmed history of Pneumocystis pneumonia or a pre-treatment CD4 count below 200 per cubic millimetre.

It was the first approved antiretroviral, not a cure, and not the multidrug combination therapy that later transformed long-term HIV management.

107 days, and nineteen deaths

The pivotal randomized placebo-controlled trial enrolled 282 patients with AIDS or advanced ARC and was halted early: one death among 145 AZT recipients against 19 among 137 placebo recipients. Burroughs Wellcome submitted its application in December 1986.

FDA completed the review in 107 days, described at the time as an agency record — an unusually fast priority review that predated FDA’s formal Accelerated Approval regulations of 1992.

The trial established a striking short-term benefit in advanced disease. It did not settle long-term efficacy, optimal dosing or toxicity, and serious bone-marrow suppression was already a recognized concern.

Midnight, 15 July 1987

President Chiang Ching-kuo’s order ending martial law in the Taiwan Area took effect at 00:00 on 15 July 1987. He had promulgated it the previous day, after the Legislative Yuan transmitted its assent.

Military authorities lost their general martial-law power to try civilians and to control the press.

The statute that replaced it

The National Security Law During the Period of Communist Rebellion took effect at the same moment, swapping martial-law controls for a civilian statutory security regime that permitted new political parties subject to restrictions.

Taiwan’s principal opposition party did not wait for that permission. The Democratic Progressive Party had been founded openly in defiance of the ban on 28 September 1986, ten months earlier.

What kept going

The newspaper-licensing ban was not lifted that day; the government removed it on 1 January 1988. The Temporary Provisions Effective During the Period of Communist Rebellion lasted until 1991.

The order covered the “Taiwan Area” — Taiwan and Penghu. Military administration continued on the frontier islands of Kinmen and Matsu until 1992.

Even the headline number is approximate: the provincial martial-law order was promulgated on 19 May 1949 but took effect on 20 May, and later accounts give the span as 38 years and 56 days.

Before dawn, 23 February 1988

In the early hours of 23 February 1988, the Iraqi army and air force began a large-scale assault on Patriotic Union of Kurdistan headquarters in the high Jafati Valley northeast of Suleimaniyeh, firing chemical rounds and dropping chemical bombs around Sergalou and Bergalou.

It was the opening of the First Anfal — a siege lasting more than three weeks, and the first of the eight stages in the Iraqi state’s campaign against rural Kurdish areas.

Three weeks on high ground

Kurdish fighters used the high ground above the heavier poison clouds, lit fires, and used gas masks and atropine supplied by Iran. The Iraqi advance did not carry the headquarters quickly.

Command sat with Ali Hassan al-Majid, the Ba’ath Northern Bureau secretary, who held presidential-equivalent authority in northern Iraq over the army, security services and party apparatus. Human Rights Watch identifies the First and Fifth Corps as central military actors.

Which numbers hold up

Human Rights Watch estimates at least 50,000 and possibly as many as 100,000 people killed during the complete campaign, and about 2,000 villages destroyed across 1987–1989. The 182,000 total is an early PUK and Kurdish claim; Sciences Po describes it as extrapolated from assumed village size rather than counted.

The date carries a caveat too. Human Rights Watch’s 1993 account and the Sciences Po study give 23 February, while an earlier 1992 HRW report dated the attack on Sergalou to the night of 25–26 February and noted the controversy over when Anfal began and ended.

And 23 February opened a military campaign, not the repression: prohibited-zone directives, mass village clearances and chemical attacks on Kurdish targets were already under way in 1987.

Two men in Peshawar, not a summit

Minutes dated 11 August 1988 record a discussion between Osama bin Laden — identified as “the Sheikh” — and Mohammed Loay Bayazid, known as Abu Rida, about establishing new military work.

The surviving record does not establish that Abdullah Azzam, Ayman al-Zawahiri or a broad assembly of “Islamic Jihadi leaders” attended that conversation. Azzam appears in the minutes only as someone whose opinion might need to be sought. The meeting took place in Peshawar, Pakistan.

What was on the page

Their outline distinguished a general camp, a special camp and “Qaeda,” meaning a base, and proposed a staged plan and timetable: train 314 selected recruits within six months.

Abu Rida complained that earlier goals and plans had not been fulfilled. Bin Laden said they had not yet started an organization or Islamic group.

One phrase, translated two ways

The U.S. government translation rendered an Arabic expression meaning “new military work” as “new military group.” Scholars Leah Farrall and Mustafa Hamid argue the change materially alters the document’s meaning.

Formal machinery came later: meetings at bin Laden’s house on 18–20 August, with nine named participants, produced an advisory structure, membership requirements and a pledge of obedience. A later note says work of al-Qaeda commenced on 10 September, listing fifteen people including nine administrators.

Farrall’s research argues, further, that an organization called al-Qaeda was already functioning in late 1987.

Seven o’clock, 10 September 1989

Hungarian foreign minister Gyula Horn announced on state television at about 7 p.m. on 10 September 1989 that Hungary would allow East German citizens in the country to leave for willing third countries.

The mechanism was not thousands of individual exit visas. Hungary temporarily suspended the provisions of its 1969 visa-free-travel agreement with East Germany that had legally blocked such departures. Camp administrators in Budapest and at Zánka on Lake Balaton had told prospective emigrants that morning that departures would begin during the coming night.

Midnight, and the Trabants

The announced opening took effect at 00:00 on 11 September. East Germans crossed into Austria and continued toward West Germany, with Hungarian guards checking papers at the crossings.

More than 10,000 were reported to have crossed in the first 24 hours, and more than 12,000 used the route within three days.

What the listing gets wrong

The corpus entry files this under Austria-Hungary, a state that ceased to exist in 1918. The event involved the modern Republic of Austria and the Hungarian People’s Republic.

East Germany also had no Austrian border of its own: the escape route ran from East Germany through Czechoslovakia into Hungary, and only then across Hungary’s frontier with Austria.

Nor was this the first breach of the physical Iron Curtain. Hungary began removing its electronic fence in May, officials symbolically cut wire in June, and more than 700 East Germans crossed during the Pan-European Picnic on 19 August.

Oslo announces; California wakes

The Norwegian Nobel Committee announced in Oslo on 5 October 1989 that the year’s Peace Prize would go solely to the 14th Dalai Lama, Tenzin Gyatso, then 54.

He was in Newport Beach, California, for a peace conference, and took the news at about 6 a.m. local time. His personal secretary, Tenzin Geyche Tethong, reported that his own initial reaction was restrained even as colleagues celebrated.

What the citation said

The committee cited his consistent opposition to violence and his advocacy of peaceful solutions based on tolerance and mutual respect, in order to preserve Tibetans’ historical and cultural heritage.

It also highlighted his ideas of universal responsibility and his proposals on international conflict, human rights and global environmental problems. Chairman Egil Aarvik defended nonviolence as the equitable means available for addressing Tibet.

An announcement, not a ceremony

At a same-day press conference the Dalai Lama said the honour should give Tibetans courage. Chinese officials objected that the award interfered in China’s internal affairs.

The prize was awarded whole to one laureate, and contemporary reports put its value at US$469,000. The formal presentation stayed on the calendar for 10 December in Oslo.

Wenceslas Square, 20 November 1989

Through the afternoon and evening of 20 November 1989, a peaceful and initially leaderless crowd filled Wenceslas Square and National Avenue in central Prague, protesting the police assault of 17 November and demanding an end to the Communist Party’s monopoly on power.

The official count was 150,000; U.S. Embassy observers estimated closer to 200,000, and a later Czech institutional account says more than 100,000. One later chronology gives 300,000. Crowd counting here was necessarily approximate.

Tolerated in the centre, stopped at the bridges

Police did not disperse the main gathering while it stayed inside the central “Golden Cross” area, but security forces closed bridges across the Vltava to stop several thousand demonstrators marching toward Prague Castle.

Czechoslovak Television showed the demonstrations and interviewed students and other participants, giving opposition views unusual access to a national audience. Similar demonstrations took place in Bratislava, Brno, Olomouc, Teplice, Liberec and Ostrava.

Where the half-million belongs

The Czech Institute for the Study of Totalitarian Regimes puts about 750,000 at the Letná demonstration of 25 November and more than 500,000 on 26 November — the scale the listing attaches to the 20th.

The regime had not yet lost the streets either. The Communist Party presidium met that afternoon, rejected the students’ proposed general strike of 27 November, and issued a mixture of promised dialogue and warnings that order would be maintained.

Timotei Cipariu Street, 16 December 1989

Parishioners returned to the Hungarian Reformed church in Timișoara on 16 December 1989 to shield pastor László Tőkés from a court-ordered eviction, and other city residents joined them in growing numbers.

Tőkés repeatedly asked the gathering to disperse. During the afternoon the solidarity vigil turned into open revolt against Nicolae Ceaușescu’s dictatorship.

Speeches from stopped trams

Around 4 p.m. demonstrators halted trams in St. Mary’s Square and used their platforms as speaking stages, chanting “Down with Ceaușescu” and “Freedom” and singing the banned patriotic song “Deșteaptă-te, române!”

A column marched on the Timiș County Communist Party headquarters. Attempts to enter the building and pull down Communist symbols brought clashes with Interior Ministry forces, water-cannon crews and an anti-terrorist platoon.

Not “initiated by the Hungarian minority”

Hungarian Reformed parishioners began the vigil — on 15 December, a day before the listed date — but Romanian and other residents joined, and the crowd rapidly adopted nationwide anti-dictatorship demands rather than a minority grievance.

After midnight thousands gathered at the Orthodox Cathedral chanting “Down with communism.” Security forces cleared the streets before dawn, beating and arresting hundreds.

At about 4 a.m. on 17 December, Tőkés was forcibly removed to Mineu.

One factory refuses, 19 December 1989

Workers at Timișoara’s Electrobanat plant, known as ELBA, refused to resume production on 19 December 1989 while soldiers and armoured vehicles remained in the factory and the city streets.

Local Communist leader Radu Bălan and Mayor Petru Moț came to the plant and failed to talk them back to work. The condition the workers set was that the army leave the factories and the city.

A general argues, then promises

General Ștefan Gușă argued with the workforce. Army personnel opened fire and seriously wounded a woman; Gușă then promised the crowd that the army would stop shooting.

The Communist officials left ELBA without ending the stoppage.

The listing folds two days into one

“Workers in the cities go on strike” implies a simultaneous multicity walkout. What is documented for the 19th is one factory in Timișoara.

The citywide general strike, the large columns of workers marching into the centre and the order sending the military back to barracks all belong to 20 December.

Contemporary reporting put as many as 100,000 people in that 20 December march — a figure transmitted through foreign television and best read as an estimate; the detailed local memorial describes tens of thousands in Opera Square.

Marsaxlokk Harbor, 3 December 1989

George H. W. Bush and Mikhail Gorbachev closed their informal 2–3 December summit aboard the Soviet passenger liner Maxim Gorky in Marsaxlokk Harbor, Malta. The listing carries only the year 1989; the concluding day is securely dated to 3 December.

Severe weather wrecked the planned ship-to-ship arrangements. Bush told reporters the venue did not matter and travelled from USS Belknap to the Maxim Gorky; Gorbachev reported about eight hours of discussion.

The first joint press conference

Bush said the talks had set the stage for cooperation and for overcoming Europe’s division and military confrontation. Asked whether the Cold War had ended, Gorbachev said both sides believed the world was leaving one Cold War epoch and entering another — while stressing this was only the beginning of a long peaceful period.

Malta was not the first postwar meeting of the two countries’ leaders: Reagan and Gorbachev alone had held four summits between 1985 and 1988.

No treaty, and no named invasion

Answering a Czechoslovak journalist, Gorbachev said every nation was independent and every people had the right to choose its own destiny; Bush replied that this laid previous interventionist doctrines to rest. Gorbachev did not name the 1968 invasion, and the explicit Warsaw Pact condemnation of it came in Moscow the next day, 4 December.

The leaders discussed strategic, conventional and chemical-arms negotiations and assigned follow-up work, but the summit produced no formal treaty or agreement.

Whether Malta ended the Cold War is contested: some scholars treat it as central, others as a missed opportunity or a catalytic meeting that achieved little concrete on its own.

Monday, 9 October 1989

The listing gives only the year. The march it describes took place on 9 October 1989: after Monday peace prayers in Leipzig’s churches, tens of thousands of East Germans moved onto the city-centre ring road and demonstrated against the ruling SED system.

They demanded democratic reform and legal recognition of the opposition movement New Forum, chanting “Wir sind das Volk,” “Keine Gewalt” and “Neues Forum zulassen.” The Stasi archive and most institutional accounts put the crowd at about 70,000; a later reconstruction has argued for roughly 130,000.

Past the Stasi headquarters, and nothing happened

The route ran along Karl-Marx-Platz and the inner ring, including the Dittrichring beside the district Stasi headquarters, and the march dispersed peacefully at about 8:30 p.m.

Security forces had been mobilized and a crackdown was widely feared. No single order explains why none came: archival accounts point to the unexpected size of the crowd, fear of uncontrolled escalation, uncertainty among local officials and the absence of clear direction from East Berlin.

The breakthrough, not the peak

This was the largest East German anti-government protest since 1953 at that point, but not the largest of the autumn: roughly 120,000 came the following Monday, 16 October, and about 400,000 on 6 November.

The slogan matters too. “Wir sind das Volk” asserted popular sovereignty and should not be silently converted into the later reunification slogan “Wir sind ein Volk”; reunification was not yet the march’s defining demand.