Slav was founded as a paramilitary Nahal settlement in 1980. The settlement was named after the bird that the Israelites ate in the desert during the Exodus from Egypt.
In 1982, with the signing of the Israel-Egypt Peace Treaty and subsequent withdrawal from the Sinai Peninsula, Slav became a transit camp of former residents evicted from Sinai and temporary home to the Midreshet Hadarom girl's seminary. At the beginning of the 90's, the location was divided into a military base and a residential civilial area with several families. In 2001, a small group of people including staff and students of the nearby 'Otzem' pre-military preparatory school in Bnei Atzmon moved to settle the village and strengthen its numbers.