On the tenth of Nisan, according to the biblical narrative in the Book of Joshua, Joshua and the Israelites crossed the Jordan River at Gilgal into the Promised Land while carrying the Ark of the Covenant. It was thus the first documented "mass aliyah." On that day, God commanded the Israelites to commemorate and celebrate the occasion by erecting twelve stones with the text of the Torah engraved upon them. The stones represented the entirety of the Jewish nation's twelve tribes and their gratitude for God's gift of the Land of Israel () to them.