On this day, February 4, in 1899 the Fil-Am War began on Sociego St in Sta Mesa, Manila.
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 1945, the Yalta Conference began between Franklin Roosevelt, Winston Churchill, and Joseph Stalin to discuss what would happen to Germany once it was defeated.
https://www.britannica.com/on-this-day/February-4
On this day in 1915, Dr. Joseph Goldberger began researching the cause of pellagra. At the end of the experiments, they discovered that a lack of vitamins was the cause of this disease.
https://todayinsci.com/2/2_04.htm
February is Air Transportation Safety Month (Proclamation No. 115-A, s. 1966)
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