NYT Crossword Tips
Tip: Use ? for unknown answer letters, e.g. AN??ER. Use the space bar to enter ? quickly.

Clue: "First city to reach a population of one million people, in the second century B.C."

"First city to reach a population of one million people, in the second century B.C." is a New York Times crossword puzzle clue that we have seen 1 time.