No one knows exactly how the Sadducees came into being. There are several ideas, but the evidence is incomplete. Most of the information concerning the Sadducees comes from the writings of Josephus and the New Testament. These were represented by the Pharisees, the Sadducees and the Essenes. The Sadducees consisted primarily of wealthy and politically powerful Jews, including the high priest and most of the Sanhedrin.
Most religious groups teach some truth.
Even the Sadducees taught correct principles. During the early part of their development, their attitude toward the Scriptures could have caused them to fit in among us. They considered themselves to be the conservatives of their day who did not add to God's Word. Unquestionably the most important denial on the part of the Sadducees was that of the oral law. They denied the Pharisaic contention that the oral law traced back to Moses and that it was authoritative and binding1.