Siege of Jerusalem (70 CE) - Wikipedia

On August 10, 70 (approximately), the Second Temple in Jerusalem was set on fire by the Roman army under Titus during the capture of the city. From the article:

"The Siege of Jerusalem in the year 70 CE was the decisive event of the First Jewish–Roman War. The Roman army, led by the future Emperor Titus, with Tiberius Julius Alexander as his second-in-command, besieged and conquered the city of Jerusalem, which had been controlled by Judean rebel factions since 66 CE, following the Jerusalem riots of 66, when the Judean Free Government was formed in Jerusalem.

The siege ended on August 30, 70 CE[3] with the burning and destruction of its Second Temple, and the Romans entered and sacked the Lower City. The destruction of both the first and second temples is still mourned annually as the Jewish fast Tisha B'Av. The Arch of Titus, celebrating the Roman sack of Jerusalem and the Temple, still stands in Rome. The conquest of the city was complete on September 8, 70 CE."