In the 1950s and 1960s three copies of portions of Sirach were found among the Dead Sea Scrolls. The largest scroll was discovered at Masada, the Jewish fortress destroyed in 73 CE. The earliest of these scrolls (2Q18) has been dated to the second part of the 1st century BCE, approximately 150 years after Sirach was first composed. These early Hebrew texts are in substantial agreement with the Hebrew texts discovered in Cairo, although there are numerous minor textual variants. With these findings, scholars are now more confident that the Cairo texts are reliable witnesses to the Hebrew original.