Over the course of August, the length of the day in Florence is gradually decreasing, with a difference of 1:20 hours between the start and the end of the month. The shortest day is August 31st with 13:14 hours of daylight, whilst the longest day is August 1st with 14:33 hours of daylight.
Quick Answer. A decade is a period of 10 years. The word decade originates from the Greek word dekas, which means a group of 10. The word decade began to be used in English to mean a period of 10 years in 1590. Continue Reading.
decade. 1  a group of ten. 2  a period of ten years; esp., in the Gregorian calendar. 3  officially a ten-year period beginning with the year 1, as 1921-1930, 1931-1940, etc. 4  in common usage, a ten-year period beginning with a year 0, as 1920-1929, 1930-1939, etc.