On this day, March 20, in 1990, the trial of Imelda Marcos and Adnan Khashoggi began in New York on the charge of racketeering under the Thornburgh Doctrine which gives America the right to arrest and try any foreigner it likes. Marcos and Khashoggi were later acquitted.
The official calendar of the Republic of the Philippines: an almanac of Philippine commemorations enlivened with illustrations and information. –Manila: Presidential Communications Development and Strategic Planning Office, [2014].
On this day in 1995, some AUM Shinrikyo leaders detonated poison inside the subway in Tokyo. 12 died.
https://www.britannica.com/on-this-day/March-20
On this day in 1987, the FDA approved the sale of AZT (azidothymidine), the first anti-AIDS drug.
https://www.todayinsci.com/3/3_20.htm
March is Women’s Role in History Month (Proclamation No. 227, s. 1988)
You may want to read: