Judaism began as the religion of the ancient Hebrews around 1800 BCE, originating from the call of Abraham and codified in the Torah and the covenant with God through Moses. The core texts of Judaism are the Torah, Nevi'im, and Ketuvim which make up the Tanakh, and the religion's major divisions are Orthodox, Conservative, and Reform Judaism which have differing views on traditions and modernization. The document provides historical context on the origins and development of Judaism from Abraham to the present day.