Lieutenant Commander Data was a Soong-type android, the first and only such being to ever enter Starfleet. Data was created some time in the 2330s and was killed in 2379, sacrificing himself to save the crew of the USS Enterprise-E. (TNG: "The Measure Of A Man", "Datalore", "Silicon Avatar", "Conundrum", "Inheritance"; Star Trek Generations; Star Trek Nemesis)
In 2401, Data was resurrected as Daystrom Android M-5-10, an android which had Data, Lore, Lal and B-4 stored inside of it. After a struggle for control with Lore, Data's personality emerged dominant, although with elements of everyone else, and he took control of the golem body. (PIC: "Dominion", "Surrender")
