Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The 1940 season of the Peruvian Primera División, the top category of Peruvian football, was played by 8 teams. The national champions were Deportivo Municipal. From 1931 until 1942 the points system was W:3, D:2, L:1, walkover:0.
Updated to match(es) played on 1940. Source: Diario El Comercio, La Prensa and Crónica. Legend: Blue = home team win; Yellow = draw; Red = away team win.