Christianity
Early Christianity
https://en.wikipedia.org/wiki/History_of_Christianity#Early_Christianity_(c._31/33%E2%80%93324)
Christianity beginning with the ministry of Jesus (c. 27-30) and end with the First Council of Nicaea (325). It is typically divided into two periods: Christianity in the 1st century which is known as the Apostolic Age (c. 30–100, when the first apostles were still alive) and the Ante-Nicene Period (c. 100–325).
Christianity, early
early Christianity
early and medieval Christianity
Encyclopedia of Lesbian Histories and Cultures