70s

This is a list of events occurring in the 70s, ordered by year.

70

By place

Roman Empire

1970s

The 1970s (pronounced "nineteen-seventies", commonly abbreviated as the "Seventies") was a decade of the Gregorian calendar. In the 21st century, historians have increasingly portrayed the 1970s as a "pivot of change" in world history focusing especially on the economic upheavals. In the Western world, social progressive values that began in the 1960s, such as increasing political awareness and economic liberty of women, continued to grow. In the United Kingdom, the 1979 elections resulted in the victory of its Conservative Party Margaret Thatcher, the first and to date only female British Prime Minister. 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.

Ribosome

The ribosome (/ˈraɪbəˌsoʊm, -boʊ-/) is a complex molecular machine found within all living cells, that serves as the site of biological protein synthesis (translation). Ribosomes link amino acids together in the order specified by messenger RNA (mRNA) molecules. Ribosomes consist of two major components: the small ribosomal subunit, which reads the RNA, and the large subunit, which joins amino acids to form a polypeptide chain. Each subunit is composed of one or more ribosomal RNA (rRNA) molecules and a variety of proteins. The ribosomes and associated molecules are also known as the translational apparatus.

The sequence of DNA, which encodes the sequence of the amino acids in a protein, is copied into a messenger RNA chain. It may be copied many times into RNA chains. Ribosomes can bind to a messenger RNA chain and use its sequence for determining the correct sequence of amino acids. Amino acids are selected, collected, and carried to the ribosome by transfer RNA (tRNA) molecules, which enter one part of the ribosome and bind to the messenger RNA chain. It is during this binding that the correct translation of nucleic acid sequence to amino acid sequence occurs. For each coding triplet in the messenger RNA there is a distinct transfer RNA that matches and which carries the correct amino acid for that coding triplet. The attached amino acids are then linked together by another part of the ribosome. Once the protein is produced, it can then fold to produce a specific functional three-dimensional structure although during synthesis some proteins start folding into their correct form.