The Baltimore Colts relocation to Indianapolis was a successful effort by then-Colts owner Robert Irsay to move the National Football League (NFL) team from Baltimore, Maryland to Indianapolis, Indiana completely unannounced and in the wee hours of March 29, 1984 after years of lobbying for a new stadium to replace the inadequate Memorial Stadium. The franchise's move continues to embitter many Baltimore natives decades afterward, and would have a lasting impact on the NFL, including another controversial relocation twelve years later.