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The sexagenary cycle, also known as the ganzhi or stems-and-branches is a cycle of sixty terms, each corresponding to one year, thus a total of sixty years for one cycle, historically used for recording time in China and the rest of the East Asian cultural sphere and Southeast Asia. [1]
The Saraiva-Cotegipe Law (Portuguese: Lei Saraiva-Cotegipe), also known as the Sexagenarian Law (Lei dos Sexagenários), officially Law No. 3,270 of 28 September 1885, was a Brazilian law enacted on 28 September 1885 that granted freedom to slaves aged 60 or older. Before the release, there would be mandatory and free service, which would be ...
Ageing (or aging in American English) is the process of becoming older.The term refers mainly to humans, many other animals, and fungi, whereas for example, bacteria, perennial plants and some simple animals are potentially biologically immortal. [1]
This Wikipedia page provides a comprehensive list of decades, centuries, and millennia.
Taxonomic rank is a classification level in biological taxonomy, such as species, genus, family, order, class, phylum, and kingdom.
Date Event 4.3-4.1 Ga The earliest life appears, possibly as protocells.Their genetic material was probably composed of RNA, capable of both self replication and enzymatic activity; their membranes were composed of lipids.
In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined.
Two naming scales for large numbers have been used in English and other European languages since the early modern era: the long and short scales.Most English variants use the short scale today, but the long scale remains dominant in many non-English-speaking areas, including continental Europe and Spanish-speaking countries in Latin America.