High Quality Content by WIKIPEDIA articles! The Amoskeag Manufacturing Company was a textile manufacturer which founded Manchester, New Hampshire. From modest beginnings in near wilderness, it grew throughout the 19th century into the largest cotton textile plant in the world. At its peak, Amoskeag was unrivaled both for the quality and quantity of its products. But with great size came an inability to adapt. In the early 20th century, the business failed in changing economic and social conditions.