It would have been 149,997,988 years BC (in 2013). But, assuming that 150 million is, at best, accurate to the nearest million years, for all intents and prposes, the answer should be 150 million years BC.
Euclid's "The Elements," is a geometric treatise consisting of 13 books written by him circa 300 BC. However, it was compiled from the works of several earlier mathematicians from earlier centuries.
Pythagoras was born around 570 BC, about 235 years earlier than Euclid.
1,000,000 x 1,000,000 = 1,000,000,000,000. So yes, 1 million x 1 million = 1 trillion.
BC' + BC' = 2BC'
The population of Greece in 500 BC was around 400000. The population however increased to between 8 and 10 million by 800 BC.
most likely
400 BC is earlier than 220 BC
The answer depends on earlier than WHAT? Earlier than the nineteenth century? Earlier than 6 BC? Earlier than 5,000,000 BC? In the last case, the answer is NONE!
384 b.c.
The Romans invaded Portugal around 45 BC or shortly afterwards.The Romans invaded Portugal around 45 BC or shortly afterwards.The Romans invaded Portugal around 45 BC or shortly afterwards.The Romans invaded Portugal around 45 BC or shortly afterwards.The Romans invaded Portugal around 45 BC or shortly afterwards.The Romans invaded Portugal around 45 BC or shortly afterwards.The Romans invaded Portugal around 45 BC or shortly afterwards.The Romans invaded Portugal around 45 BC or shortly afterwards.The Romans invaded Portugal around 45 BC or shortly afterwards.
The population of China in 221 BC is estimated to have been around 20 million people. This was during the time of the Qin Dynasty, which was known for its centralized administrative system and census records.
500 BC or earlier
500 BC or earlier
about 400000 years ago, between the rivers of mesopotamia.
2,000,001 BC(2 million and 1 year BC) - 'Before' means further back in time.
4000 BC; time goes down in BC not upwards like AD. The higher the number in BC the earlier it is