Alexander the Great was a king of the ancient kingdom of Macedon. Macedon was located north of Greece. He was born in 356 BCE. He became king at the age of 20. He was a great soldier. He expanded his kingdom from Greece all the way to India. He died in Babylon in 323 BCE. The true cause of his death is still a mystery.

Which sources could help historians to understand how Alexander the Great died?

Choose three answers.

artifacts
chance
human error
new technology
historical documents