400 b.C.

400 BC is earlier than 220 BC

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.