51-30bc = 21
Cleopatra ruled from 47 BC to 30BC, which was 17 years. She had become ruler before this time, but was deposed and returned in 47BC.
39 Years old from birth to death (69BC-30BC). If you do your maths, she would be 2069 years old in 2010.
2000 is a year, so it is considered one year.
From c.3100BC when Menes unified the country to 30BC when Egypt became a Roman Province
Cleopatra would be succeeded by ptolemy xv [caesarion] from august 12 30bc to august 23 30bc
Including 2000, there are 243 leap years from 2000 through 3000. Most centuries have 24 leap years, every four years from the fourth through the 96th year of the century. Only once every four centuries is the last year of the century also a leap year (like the year 2000).
2010 - 2000 = 10
From 2000 through 2099:2000200420082012201620202024202820322036204020442048205220562060206420682072207620802084208820922096
The year 2000 was a leap year, so the use of a 2000 calendar is limited to leap years. Which are.... 2000, 2028, 2056, 2084.
12
2000 years back