Among the most significant findings to date at the site: Philistine Temples dating to the 11th through 9th century BCE, evidence of an earthquake in the 8th century BCE possibly connected to the earthquake mentioned in the Book of Amos I:1, the earliest decipherable Philistine inscription ever to be discovered, which contains two names similar to the name Goliath; a large assortment of objects of various types linked to Philistine culture; remains relating to the earliest siege system in the world, constructed by Hazael, King of Aram Damascus around 830 BCE, along with extensive evidence of the subsequent capture and destruction of the city by Hazael, as mentioned in Second Kings 12:18; evidence of the first Philistine settlement in Canaan (around 1200 BCE); different levels of the earlier Canaanite city of Gath; and remains of the Crusader castle “Blanche Garde” at which Richard the Lion-Hearted is known to have been.
http://crev.info/2015/08/gath-archaeology/#sthash.sfz9z8v7.dpuf
http://crev.info/2015/08/gath-archaeology/#sthash.sfz9z8v7.dpuf