Robert Walpole, English politician, Prime Minister of the United Kingdom (born 1676)

Robert Walpole, 1st Earl of Orford, known between 1725 and 1742 as Sir Robert Walpole, was a British Whig statesman who is generally regarded as the de facto first Prime Minister of Great Britain, serving from 1721 to 1742. His formal titles included First Lord of the Treasury, Chancellor of the Exchequer, and Leader of the House of Commons.

The prime minister of the United Kingdom is the head of government of the United Kingdom. The prime minister advises the sovereign on the exercise of much of the royal prerogative, chairs the Cabinet, and selects its ministers. Modern prime ministers hold office by virtue of their ability to command the confidence of the House of Commons, so they are invariably members of Parliament.

March 18 is the 77th day of the year in the Gregorian calendar; 288 days remain until the end of the year.