[1] The kibbutz was established in 1945 on land purchased by the Ancient Order of Maccabeans in England,[2] a philanthropic society founded in 1896.

[4] The founders were Jewish immigrants from Europe, who named the kibbutz after the biblical city of Gezer (Joshua 21:21), identified at a tell (archaeological mound) located nearby.

[5] On 10 June 1948, the day after an attempt to take Latrun was performed by the Yiftach and Harel brigades during the 1948 Arab–Israeli War, a battalion-size force of the Arab Legion, supported by irregulars and a dozen armoured cars, attacked the kibbutz, which was defended by 68 Haganah soldiers.

The current kibbutz was founded on 4 July 1974 by a gar'in from North America, which included peace activist Vivian Silver.

[8] However, the number of attendees has to be restricted due to the risk of rocket attacks, leading to anger in the red-hair community.