When be the lock made? look it up on yahoo!

look it up on yahoo!
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Answers:    Wooden locks and keys were surrounded by use as early as 4,000 years ago in Egypt.

The first prearranged lock with a key is a pin lock. The lock is strung on a rope baggy out of a hole in a door. A cylinder of wood with a hole drilled through its axis is the switch, the length of the cylinder being the critical factor. Then the push button is inserted into the hole and the bolt is pushed the correct distance. To lock the door,they just pulled on the rope to extract the key cylinder and simultaneously pulling the bolt closed. This type of lock is still within use in certain parts of the world. A hazard of this lock is a vandal can push the rope into the hole ¡ª an ancient equivalent of putting glue into a lock.