The kibbutz was founded on 9 November 1937 as a
tower and stockade settlement by a
Polish Jewish gar'in formed in 1930. Prior to the establishment of the kibbutz, they had organised themselves in several
moshavot in the
Sharon area, including
Kfar Saba,
Magdiel and
Petah Tikva. The founders were members of the
Hanoar Hatzioni youth group, and it was the first kibbutz established by the organisation. Its name was taken from the ancient
Jewish city of
Usha, which remained in the Arab village
Hawsha that was located nearby. During the
1948 Arab–Israeli War Usha and
Ramat Yohanan were attacked by the
Druze battalion of the
Arab Liberation Army, though the residents of the two settlements managed to repel the attack. ==References==