Lex Fridman · The 3 biggest threats to the Roman Empire | Anthony Kaldellis and Lex Fridman

1. 1. The three biggest threats to the Roman Empire were the Arab conquests in the 630s, the Seljuk Turk conquest of Asia Minor in the 1070s, and the Fourth Crusade in 1204.
2. 2. Most of Roman history after the early crises was characterized by slow, steady economic growth and small-scale territorial expansion, not constant decline.
3. 3. Historians often use fixed dates like 395 or 476 to label processes that actually unfolded over decades, not single events.
4. 4. Constantine's conversion to Christianity was a genuine discrete event with long-term consequences, unlike many other historical markers.