Dossier №239

2,001 AD

Hijacked airliners strike the World Trade Center and the Pentagon in coordinated terrorist attacks.

This question uses 2001 AD as its sourced chronological anchor.

Nearly three thousand people were killed, and the attacks transformed global security and American foreign policy.

1,609 AD

Galileo Galilei turns an improved telescope toward the night sky.

This question uses 1609 AD as its sourced chronological anchor.

His observations of lunar terrain and orbiting moons provided powerful evidence against an unchanging, Earth-centered cosmos.

1,324 AD

Mali’s ruler Mansa Musa travels through Cairo on an exceptionally lavish pilgrimage to Mecca.

This question uses 1324 AD as its sourced chronological anchor.

Accounts of his gold distribution advertised Mali’s wealth and connected the empire more visibly to Islamic scholarly networks.

490 BC

Athenians and their allies defeat a Persian landing force at Marathon.

This question uses 490 BC as its sourced chronological anchor.

The victory ended that invasion attempt and entered Greek civic memory, though the wider Persian wars continued.

450 BC

A distinctive Iron Age artistic and material tradition spreads across much of central Europe.

This question uses 450 BC as its sourced chronological anchor.

La Tène metalwork and settlements are associated with diverse Celtic-speaking societies rather than one unified people.