Old Montreal is the historic district of the city of Montreal, located in the south-central part of Montreal Island and bounded by the St. Lawrence River to the south, Saint-Antoine Street to the north, McGill Street to the west and Saint-Hubert Street to the east. In the second half of the 20th century, this area came under pressure from urban change, as business and port activity shifted elsewhere, depriving Old Montreal of its historic roles. But in the 1960s, a long process began that completely transformed it into a heritage district (it was at this time that the name Old Montreal came into common use). The designation of the Arrondissement historique de Montréal by the Quebec government in 1964 marked an important step in this transformation. With massive investments from the three levels of government, as well as from businesses and individuals, a lengthy rehabilitation effort began. Nearly 60 years later, visitors can now follow the traces of Montreal’s history back to pre-colonial times, and the changes that the city has undergone since the first European settlers arrived in 1642.