There were 1603 years between 396 CE (AD) and 1999 CE (AD).
503 years
1, 311 years ago!
426 years
If you're not including 396 or 1999 but only the years between them, then there are 1999-396-1 or 1602 years
500 years
150 AD is in the second century, which spans the years 101-200.
2159 years
150 years. (969 AD- 1126 AD
If you let BC years be negative then it could be the difference between -150 and 200 which is 200 - -150 = 350. However, as there was NO year 0 (as zero did not come to Europe until around the 11th-12th centuries and Dionysius Exiguus ("Little Dennis") created the AD/BC system of dates in 247 Anno Diocletani, calculating Jesus' birth to be 531 years earlier and made it 1 AD, thus making his "current year" 532 AD; and explains why the 21st century AD did not start until 2001). Thus from 150 BC to 200 AD is one less at 349 years.
= How did geographic knowledge increase in the years between ad 150 and 1500?" =
5 times. 3910 BC ± 200 years, 3050 BC and 740 AD ± 150 years, 1815, 1967
430
How many years does BC and AD
1009 years
813 years
300 years