What is the name of the town, formerly known as Webster, that currently has the Regional School Unit 4 as the district headquarters?
Regional School Unit 4: Regional School Unit 4 (RSU #4) is a school district headquartered in Wales, Maine. Regional School Unit 4:  It serves Wales, Litchfield, and Sabattus. Sabattus, Maine:  The town was formerly known as Webster, and changed its name to Sabattus in 1971, in honor of a former Anasagunticook Indian chief.
i don't know