1847 – 1st US postage stamps go on sale, 5 cents Franklin and 10 cents Washington, NYC.
1861 – 1st public schoolhouse opens at Washington and Mason St., San Francisco.
1862 – US Internal Revenue Law imposes 1st federal taxes on inheritance, tobacco and on incomes over $600 (progressive rate)
1874 – 1st US zoo opens (Philadelphia)
1899 – Gideon Society established to place bibles in hotels.
1908 – “SOS” distress signal becomes the worldwide standard.
1916 – Coca-Cola brings current coke formula to the market.
1931 – Ice vending machines introduced in LA..25 lbs., 15 cents.
1931 – US President Herbert Hoover places a one year moratorium on war debt payments.
1932 – NY newspaper Evening Standard goes bankrupt.
1934 – 1st x-ray photo of entire body, Rochester, N.Y.
1941 – Bulova Watch Co. pays $9 for 1st ever network TV commercial.
1950 – NYC bus fare rises to 10 cents equal to subway fare, combo fare at 15 cents.
1960 – Fidel Castro nationalizes Esso, Shell & Texaco in Cuba.
1966 – Medicare goes into effect.
1972 – Feminist magazine “Ms” founded by Gloria Steinem publishes its first issue with Wonder Woman on the cover.
1979 – Sony introduces the Walkman.
1993 – 1 second added to the clock.
2015 – US and Cuba announce agreement to re-open embassies and establish full diplomatic ties.
2018 – Nationwide protests over Trump administration immigration policies in the US.