The 640s decade ran from January 1, 640, to December 31, 649.
The 640s refers to the years from 640 to 649, a decade in the 7th century. This period was significant for major historical events including the spread of Islam, the fall of the Sassanid Persian Empire, and important developments in early medieval Europe and Asia.
AI-generated from the Wikipedia summary — may contain errors.
The 640s decade ran from January 1, 640, to December 31, 649.
==References==
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).