3900
Add 4 at a time. And remember that 1900 is NOT a leap year.
2009-1900 = 1009
There have been 27 leap years between 1900 and 2010. The next one is 2012.
10
Here they are:190419081912191619201924192819321936194019441948
1900 years.
2009-1900 = 1009
A millennium is a period of 1,000 years. There are only 280 years between 1620 and 1900
about twenty years
100 years.
There have been 27 leap years between 1900 and 2010. The next one is 2012.
1900 years.
The population grew from 11m in 1750 to 40m in 1900.
150 years went by
10
Catholics
Catholics
Ten decades.