From 1646 to 2011 there have been 88 leap years.
2008 was a leap year (past) and 2012 will be a leap year (future)
17 animals have been etinct in the past 200 years
A leap year has 52 weeks and 2 days.
From 2000 through 2099:2000200420082012201620202024202820322036204020442048205220562060206420682072207620802084208820922096
It has been 55 years since 1966.
There have been about 6,300 tornadoes in the U.S. in the past 5 years with more worldwide.
10
many improvement have been made over years
There has been 250 Olympics have been held have been in the last thousand years.
Time is linear and unchanging. Our current calendar with leap years included was developed almost 2000 years ago, so there have been no significant developments in regards to tracking time in the last 200 years.
I would have to say jazz. But today there seems to be a shift of attendance. In the past few years there as been a huge leap in interest for music of the 60s.
In the years 2000-2010 there have been 13,817 tornadoes confirmed in the United States.