Simplify the following text for a Grade 4 native English-speaking person.
Original: In 1850 , DuPage County formed its first townships , and the name Lisle was first proposed by early settler Alonzo B. Chatfield of Lisle , New York ; the proposal was accepted , creating Lisle Township . The Chicago , Burlington and Quincy Railroad arrived , in 1864 , with the newly constructed depot at Lisle Station .
Simplified: Lisle is a city in the state of Illinois in the United States .