We don't know. However, based upon human remains and Archaeology, there wasn't a vast number of people. Probably several million. See also:
A total of eight people went on to the ark, they were Noah his wife, his three sons and their three wives.
8
Noah, a human, built the ark.
Jaweh/Jehova/God filled the ark that Noah built!
Into the ark
Noah listened to god and built the Ark accordingly to what God said.
The prophet who built an ark is Prophet Noah in the Abrahamic religions. According to the Quran and the Bible, God instructed Noah to build an ark to save his family and pairs of animals from a great flood.
Noah built the ark in Genesis 6:14. It's known as "Noah's Ark" If you are referring to the 'Ark of the Covenant' built in Moses' time, then this was built by Bezaleel the son of Uri. This is mentioned in Exodus 31:1-11.
Gopher wood
Noah's ark.
2350 BC.
God told him.
Well, Noah built an ark.
ark was the boat