A new scientific study of unprecedented scope has managed to accurately date findings from the First Temple period that were discovered in the city of David, shedding light on events mentioned in the Bible. Among the conclusions of the research conducted by the Israel Antiquities Authority, Tel Aviv University and the Weizmann Institute of Science is that already in the 10th century BCE – the days of King David – extensive activity was carried out in Jerusalem; by the 9th century BCE – the days of King Jehoash ad possibly even earlier, the city expanded to the west towards Mount Zion; the city wall unearthed in the City of David was not built during the days of Hezekiah as part of the preparations for the Assyrian siege, but rather earlier, during the days of King Uzziah, subsequent to the earthquake that occurred in Jerusalem.