Complex sentence: The stream was named after a small tribe of the indigenous Leni Lenape, but in the 19th century the name gained wider recognition in the Conestoga wagon, first built in this valley.
Split into simpler sentences: The stream was named after a small tribe of the indigenous Leni Lenape. In the 19th century the name of the stream gained wider recognition with the spread of the Conestoga wagon, first built in and named after this valley.