Did Ezra build the temple of Jerusalem?

No, Ezra did not build the Temple in Jerusalem; that was done by Zerubbabel and others after the Babylonian exile. Ezra was a priest and scribe who played a crucial role in the spiritual and religious restoration of the Jewish people and the reestablishment of the Torah. He is known for leading a group of exiles back to Jerusalem and reinforcing the Law among the returned community. Ezra's contributions were more focused on religious reforms and teaching rather than the physical construction of the Temple.