This month – over the Easter weekend, in fact – marked the 300th anniversary of the date on which Sir Robert Walpole effectively became the first Prime Minister of the United Kingdom.

Walpole, who had entered Parliament as a Whig at the age of 25 in 1701, had had a tumultuous political career which had included rising quickly to the positions of Secretary at War and Treasury of the Navy before, having been targeted by his Tory opponents, spending six months in the Tower of London after he was found guilty of corruption.

The accession of King George I in 1714 was good news for the Whigs and the following year Walpole was appointed First Lord of the Treasury and Chancellor of the Exchequer in 1715. He resigned a couple of years later due to a party split but by 1720 he was once again man of influence, appointed to the Privy Council and made Paymaster General as well as Paymaster of the Forces.

The following year, on 3rd April, 1721, he was effectively elevated to the position of Prime Minister after being appointed First Lord of the Treasury, Chancellor of the Exchequer, and leader of the House of Commons.

Walpole remained at the head of the government until 1742 when he resigned after a motion of no confidence was moved against him. But it wasn’t all bad news, King George II subsequently elevated him to the House of Lords as the Earl of Orford.

Interesting, it was also King George II who offered Walpole the residence in Downing Street (Walpole only accepted on condition that it be a gift to the office of the First Lord of the Admiralty so he wasn’t liable for the cost of upkeep).

Walpole was the first of what has since been an unbroken line of 77 Prime Ministers (although only 55 people have held the office due to the multiple occasions on which individuals have served).

While the term was used informally to describe Walpole as far back as the 1730s (although in 1741 he denied he was the “sole and prime minister” in the House of Commons, thanks to the association of the term with foreign tyrannies), it wasn’t until the following century that it was used in Parliament (Benjamin Disraeli, was the first to sign an act using the title in 1878) and not until 1905 was the post of prime minister officially given recognition in the order of precedence.