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.
Gunpowder was invented in china around 800ad and leaked out at 1200 ad to europe
The first gun powder-powered weapons.
An Abacus has beads and strings.
1200 B.C. to 300 B.C.
The earliest known written record of the Chinese abacus dates to the 14th century AD.
It depends whether it is BC or AD If it was BC it was 1200 years before Christ If it was AD it was 1200 years after Christ
it began in 1200 AD and ended in 1532 :-) :-) .
25
AD means Anno Domini
813 years
300 years
1200 AD - today
Richard I
Around 1200 AD.
Mediterranean trade after AD 1200 was controlled by Italian towns including Genoa and Venice.
around 1200 AD