Fun facts historical

On February 21

Fun Fact 1 : In the 1830s the Swedish Navy planted 300 000 oak trees to be used for ship production in the far future. When they received word that the trees were fully grown in 1975 they had little use of them as modern warships are built with metal.

Fun Fact 2 :

Historic invention of the day: 14-Mar

1807 : François Isaac de Rivaz designs the first automobile powered by an internal combustion engine fueled by hydrogen.

Fun Fact 3 : Happy Pi day. Pi Day is an annual celebration of the mathematical constant π (pi). Pi Day is observed on March 14 (3/14 in the month/day format) since 3, 1, and 4 are the first three significant digits of π.

Fun Fact 4 : 14 - March : Today is the birthday of Albert Einstein (14 March 1879 – 18 April 1955) who was a German-born theoretical physicist, widely acknowledged to be one of the greatest physicists of all time.