There have been 13 leap years since 1959. The first one occurred in 1960, and the last was 2012. A leap year occurs every four years.
There were 20 leap years from 1929 through 2008. (the next one is 2012):19321936194019441948195219561960196419681972197619801984198819921996200020042008
Leap years occur every four years.
There are 366 days in a leap year, the extra day falls in feburary giving the month 29 days, Leap years occur every 4 years.
10 million years since our first ancestors and about 250 thousand years for man as you know. 1000 years since we have started to eat our planet to waste.
Although seldom seen, it could be used as an adjective (leaped obstacles, leapt obstacles).It is a verb form, the past tense and past participle of to leap and has the variant form leapt.Like many past participles, it can (rarely) be used as an adjective.
16 leap years
There have been 25 leap years since 1910.
There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012There have been 15 leap years since 1955:195619601964196819721976198019841988199219962000200420082012
From 1870 to 2011 there have been 34 leap years.
As of 2011, the leap years since 1986 have been: 1988 1992 1996 2000 2004 2008 This is a total of six leap years.
1
4
12
23
13
20 leap years.
130 years