1932: Founded under the Gordon Plan by settlers from Quebec City and the Sainte-Monique Mission
1933: Opening of the post office
1940s: A boom in economic activity driven by sawmills and logging operations
1954: Electrification
1961: Construction of the Sim’Or theme park
1964: Opening of a coffee stirrer factory
1967: Founding of the Sainte-Monique-de-Rollet parish
1975: Reopening of the school (closed in 1972) following pressure from a group of citizens who saw its closure as a sign of the village’s decline
1979: Incorporation as a municipality
1984: Founding of the Rollet Workers’ Cooperative, which revived a sawmill