Answers to the other questions are less clear. Particularly in the last hundred and fifty years, questions like these, as well as those about interpretation of the Law, have resulted in divisions within Judaism. Four major divisions remain today. Orthodox Judaism, which follows the laws laid down in the Torah and Talmud as closely as possible, is the predominant form of Judaism in Israel and is found throughout the rest of the world as well. Men and women worship separately, and men wear traditional hats and prayer shawls.
Men lead in all matters of community worship.
They follow traditional dress codes, both in clothing and personal adornment. Kosher food practices are carefully observed. At the same time, however, Orthodox Jews live in the contemporary world and make their living in it. New York City's Orthodox community is known for its involvement in the diamond trade. Reform Judaism began in 19th century Germany and is the most numerous group in the United States.