From 1BC to 2009 was 2009 years, as there was no year zero.
2009+ 624 = 2633 years ago
Hi
You would think the answer was 2009-(-543) = 2009+543 = 2552 but, since there was no year 0, the answer is 2551.
4023
4023
2451 years.
545 years.
208 years
918 years
2451 years
2450 years
1900 years.