Carver County's history is documented in the records of its cities, city agencies, and government center. Schools, school districts, churches, and civic groups have archives as well. Four historical societies call Carver County home. These are the Chanhassen Historical Society, the Chaska Historical Society, the Watertown Area Historical Society, and the Willkommen Heritage and Preservation Society of Norwood Young America.
The 1960s and 1970s were a time of rapid suburban growth. City planners in these decades were frustrated with the growing problems of pollution, traffic, and creating new neighborhoods as cities spread. One solution to this idea was the "new town" movement. Designed as planned communities, these "towns" tried to organize the design and growth of the town in advance to better deal with urban sprawl. The community of Jonathan, located within the existing city of Chaska, was built along these concepts.
On the evening of May 2, 1878, the Washburn A Mill exploded in a fireball, hurling debris hundreds of feet into the air. In a matter of seconds, a series of thunderous explosions—heard ten miles away in St. Paul—destroyed what had been Minneapolis' largest industrial building, and the largest mill in the world, along with several adjacent flour mills. It was the worst disaster of its type in the city's history, prompting major safety upgrades in future mill developments.