What two elements are identified as the true 'parents' that created the Maine Coon line historically?

Answer

The harsh New England climate and the resilient local population of domestic cats

The founding stock's true 'parents' were the environment of Maine, which acted as a filter, and the entire local population of adaptable domestic cats that survived within it.

What two elements are identified as the true 'parents' that created the Maine Coon line historically?
animalÇatbreedMaine Coon