From 1BC to 2009 was 2009 years, as there was no year zero.
4023
4023
2009+1800= 3809 years ago
Thales was born around 624 BC and died around 546 BC.
2159 years
You would think the answer was 2009-(-543) = 2009+543 = 2552 but, since there was no year 0, the answer is 2551.
06-10-2010 : 2762 years ago.
2009 bc 2009 bc 2009 bc 2009 bc 2009 bc
If you are attempting to find the total amount of time, you would add the BC years to the AD years. 1200 BC would be 1200 + 2009 = 3209 years ago.
2451 years
470 years.