This solar eclipse was seen in Israel four months before the Battle of Betar. The Romans likely interpreted the meaning as justification from the heavens for the destruction of Israel. Simon bar Kochba was killed on Tisha B'Av, late July/early August 135 AD. The Bar Kochba Revolt was likely one of the most costly rebellions of the Roman Emprie. It resulted in the destruction of Ancient Israel by the Roman Empire and a genocide of the Jewish people.