Simplify the following text for a Grade 6 native English-speaking person.
Original: Auburn was incorporated on February 2 , 1839 , covering an area of 2 m. By that time , Methodist and Baptist churches had been established , and a school had been built and had come into operation .
Simplified: Auburn was firstly official mentioned on February 2 , 1839 . At this time it covered an area of 2 m. By that time , Methodist and Baptist churches and also a school were built .