Rule of two Elizabeths and Two Marys ended in two days. Elizabeth II died on 8/9/2022.
Elizabeth II became Queen on 6/2/1952 and was crowned on 2/6/1953. Her Coronation Oath was in the form of questions and answers. Geoffrey Francis Fisher, Archbishop of Canterbury, asked questions. Elizabeth II answered. One question was about her territories.
Q: Will you solemnly promise and swear to govern the Peoples of the United Kingdom of Great Britain and Northern Ireland, Canada, Australia, New Zealand, the Union of South Africa, Pakistan, and Ceylon, and of your Possessions and other Territories to any of them belonging and pertaining, according to their respective laws and customs?
A: I solemnly promise so to do.
South Africa became a republic in 1961. Pakistan included Bangladesh. It became a republic in 1956. Ceylon changed its name to Sri Lanka and became a republic in 1972.
The decline of British Empire continued under Elizabeth II. She was Queen of today what are Malaysia, Singapore, Kenya, Uganda, Tanzania, Nigeria, Ghana, Malawi, Zambia, Zimbabwe, Namibia, Mauritius, Seychelles, Fiji, Gambia, Guyana, Malta, Sierra Leone, Trinidad and Tobago, Barbados and Hong Kong. At her death she was Queen of UK, Canada, Australia, New Zealand, Antigua & Barbuda, Bahamas, Belize, Grenada, Jamaica, Papua New Guinea, St. Kitts & Nevis, St. Lucia, St. Vincent & the Grenadines, Solomon Islands, Tuvalu and UK’s overseas territories. Charles III inherits those titles.
In 1952 UK had many protectorates. Abu Dhabi, Dubai, Bahrain, Kuwait, Maldives, Muscat & Oman, and Brunei were some of them. UK handled their Defence and Foreign Affairs. They became fully independent.
In 1952 many countries had British System of Weights and Measures. Most of them switched to Metric System.
In 1952 British Pound had 20 shillings. Each shilling had 12 pence or pennies. On 15/2/1971 it was changed to one pound having 100 pennies.