The 1970s, pronounced "the Nineteen Seventies", was the decade that started on January 1, 1970, and ended on December 31, 1979. This was the eighth decade of the 20th century.

In the Western world, social progressive values that began in the 1960s, such as increasing political awareness and political and economic liberty of women, continued to grow. The hippie culture, which started in the latter half of the 1960s, waned by the early 1970s and faded towards the middle part of the decade, which involved opposition to the Vietnam War, opposition to nuclear weapons, the advocacy of world peace, and hostility to the authority of government and big business. The environmentalist movement began to increase dramatically in this period.

In the United Kingdom with the 1979 elections resulted in the victory of its Conservative Party under Margaret Thatcher in 1979. Industrialized countries, except Japan, experienced an economic recession due to an oil crisis caused by oil embargoes by the Organization of Arab Petroleum Exporting Countries. The crisis saw the first instance of stagflation which began a political and economic trend of the replacement of Keynesian economic theory with neoliberal economic theory, with the first neoliberal governments being created in Chile, where a military coup led by Augusto Pinochet took place in 1973.

Elizabeth II (Elizabeth Alexandra Mary; born 21 April 1926) is the constitutional monarch of 16 sovereign states known as the Commonwealth realms, and head of the 54-member Commonwealth of Nations. She is also head of state of the Crown Dependencies.

Elizabeth was born in London, and educated privately at home. Her father acceded to the throne as George VI in 1936 on the abdication of his brother Edward VIII. She began to undertake public duties during the Second World War, in which she served in the Auxiliary Territorial Service. On the death of her father in 1952, she became Head of the Commonwealth and queen regnant of seven independent Commonwealth countries: the United Kingdom, Canada, Australia, New Zealand, South Africa, Pakistan, and Ceylon. Her coronation service in 1953 was the first to be televised. Between 1956 and 1992, the number of her realms varied as territories gained independence and some realms became republics. Today, in addition to the first four aforementioned countries, Elizabeth is Queen of Jamaica, Barbados, the Bahamas, Grenada, Papua New Guinea, the Solomon Islands, Tuvalu, Saint Lucia, Saint Vincent and the Grenadines, Belize, Antigua and Barbuda, and Saint Kitts and Nevis.