Complex sentence: The Museum of Indian Culture and the Lenni Lenape Historical Society is a non-profit organization and educational center, founded in 1980, dedicated to collecting, preserving, and sharing the history of the Lenape and other Northeastern Woodland Indian cultures.
Split into simpler sentences: The Museum of Indian Culture is a non-profit organization and educational center. Founded in 1980, it is dedicated to presenting, preserving, and perpetuating the history of the Lenape and other Northeastern Woodland Indian cultures.