While Jesus was on earth, he and his disciples practiced the religion that God gave to the Israelites through Moses. The guidelines they followed were found primarily in the Torah*, which is the first five books of the Old Testament -- the writings of Moses. The Torah contains a variety of information including history, the Ten Commandments, and instructions pertaining to finance, government, family, health, farming, dress, feasts, and worship.
It was at some time after the death of Jesus that Christians stopped observing the Old Testament laws. Exactly when that change occurred is not clear in the Bible. Many people believe the change was made by Jesus himself immediately after the resurrection. However, there is compelling evidence in the book of Acts that the change did not occur until much later.
How much later? Find out in the full article.