Royal assent is the method by which a monarch formally approves an act of the legislature, either directly or through an official acting on the monarch's behalf. In some jurisdictions, royal assent is equivalent to promulgation, while in others that is a separate step. Under a modern constitutional monarchy, royal assent is considered little more than a formality. Even in nations such as the United Kingdom, Norway and Liechtenstein which still, in theory, permit their monarch to withhold assent to laws, the monarch almost never does so, except in a dire political emergency or on advice of government. While the power to veto by withholding royal assent was once exercised often by European monarchs, such an occurrence has been very rare since the eighteenth century.

Royal assent is typically associated with elaborate ceremony. In the United Kingdom the Sovereign may appear personally in the House of Lords or may appoint Lords Commissioners, who announce that royal assent has been granted at a ceremony held at the Palace of Westminster for this purpose. However, royal assent is usually granted less ceremonially by letters patent. In other nations, such as Australia, the governor-general (as the Monarch's representative) has the right to dissolve the parliament and to sign a bill. In Canada, the governor general may give assent either in person at a ceremony in the Senate or by a written declaration notifying Parliament of their agreement to the bill.

The Manitoba Act, 1870 (French: Loi de 1870 sur le Manitoba) is an act of the Parliament of Canada, and part of the Constitution of Canada, that provided for the admission of Manitoba as the fifth province of Canada.Receiving royal assent on May 12, 1870, the act also continued to enforce An Act for the Temporary Government of Rupert's Land and the North-Western Territories when united with Canada upon the absorption of the British territories of Rupert's Land and the North-Western Territory into Canada on July 15, 1870.

Hoping to decrease tension, the act marked the legal resolution of the fight for self-determination between the federal government and the people (particularly the Métis) of the Red River Colony, which began in 1870 with Canada’s purchase of Rupert’s Land.Many negotiations and uprisings came with this act, some of which are still not settled today. One area of contention was that the Métis people were not familiar with the enforcement of laws, and the concept of deeds and money - this resulted in many Métis people being cheated out of the land that was supposed to be theirs. While the act included protections for the region’s Métis, these protections were not fully realized and resulted in many Métis leaving the province for the North-West Territories.