Year did you knows

Did you know the first Burger King was opened in Florida Miami in 1954
 Did you know in 1878 the first telephone book made contained only 50 names
 Did you know Coca Cola launched its 3rd product Sprite in 1961
 Did you know instant coffee was invented in 1901
 Did you know the naming of tropical storms and hurricanes officially began in 1953
 Did you know Madonna and Michael Jackson were both born in 1958
 Did you know Halley's comet passes the Earth every 76 years (the next time it will return will be 2062)
 Did you know the Olympic flag was designed in 1913
 Did you know the electric toothbrush was invented in 1939
 Did you know the doorbell was invented in 1831
 Did you know The first English dictionary was written in 1755
 Did you know the tea bag was invented in 1908
 Did you know plastic bottles were first used for soft drinks in 1970
 Did you know the $ sign was introduced in 1788
 Did you know the term 'disc jockey' was first used in 1937
 Did you know volleyball was invented in 1895
 Did you know Hawaii officially became apart of the US in 1900
 Did you know New York's Central Park was opened in 1876
 Did you know the first rugby club was formed in 1843
 Did you know New Zealands first hospital was opened in 1843