No accurate records exist.
400 b.C.
400 BC is earlier than 220 BC
no
no its false 400 bc comes before 500bc and 500bc comes after 400bc
400 BC was 2416 years before AD 2017.
No emperor ruled Rome in 400 BC. In that year Rome was a republic, not a principate.No emperor ruled Rome in 400 BC. In that year Rome was a republic, not a principate.No emperor ruled Rome in 400 BC. In that year Rome was a republic, not a principate.No emperor ruled Rome in 400 BC. In that year Rome was a republic, not a principate.No emperor ruled Rome in 400 BC. In that year Rome was a republic, not a principate.No emperor ruled Rome in 400 BC. In that year Rome was a republic, not a principate.No emperor ruled Rome in 400 BC. In that year Rome was a republic, not a principate.No emperor ruled Rome in 400 BC. In that year Rome was a republic, not a principate.No emperor ruled Rome in 400 BC. In that year Rome was a republic, not a principate.
It was believed that Halley's comet was observed as far back as 240BC
400 BC
1200 bc subtracted by 1600 = -400
Aristotle did not discover the atom. The concept of the atom was first proposed by the ancient Greek philosopher Democritus around the 5th century BCE. Aristotle had a different view of matter, which did not involve indivisible particles like atoms.
about 400 BC
400 bc