Liturgical Latinisation is the process of adoption of Latin liturgical rites by non-Latin Christian denominations. Throughout history, liturgical Latinisation was manifested in various forms. In Early Middle Ages, it occurred during the process of conversion of Gothic Christianity, and also during the process of reincorporation of Celtic Christianity. During the Crusades, it was introduced to Eastern Christians. After the creation of various Eastern Catholic Churches, several forms and degrees of liturgical Latinisation were adopted by some of those Churches, in order to make their liturgical customs resembling more closely the practices of the Latin Church of the Catholic Church.