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, .
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.
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.
February is Air Transportation Safety Month (Proclamation No. 115-A, s. 1966)
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