We are building the world’s largest database of social change milestones, from the first fire to today’s good news. Change is not only possible, it has happened consistently throughout human history.
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Era
- Tomorrow (2025 C.E. - ???)
- Today (2017 C.E. - 2024 C.E.)
- Post-modernity (1945 - 2016 C.E.)
- Modernity (1500 - 1945 C.E.)
- Post-classical (500 - 1500 C.E.)
- Civilization (3000 B.C.E. - 500 C.E.)
- Agriculture (10000 - 3000 B.C.E.)
- Prehistory (250000 - 10000 B.C.E.)
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1796 C.E.
British physician Edward Jenner develops first-ever successful vaccine
In the West, Jenner is often called "the father of immunology", and his work is said to have "saved more lives than the work of any other human".
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1971 C.E. December 15
U.S. Bill of Rights ratified, become first 10 amendments of the U.S. Constitution
The Bill of Rights amendments add specific guarantees of personal freedoms and rights, clear limitations on the government's power in judicial and other proceedings, and explicit declarations that all powers not specifically granted to the federal government by the Constitution are reserved to the states or the people.
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1790 C.E. September 25
Four great Anhui troupes introduce Anhui opera to Beijing for first time
Hui opera, or Huiju, remains as a popular regional genre of Chinese opera. It is now most prominent in the area around Huangshan City and Chizhou, as well as Wuyuan County, Jiangxi.
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311 C.E.
Roman Emperor Galerius issues Edict of Serdica, ending persercution of Christians in the Roman Empire
The Edict implicitly granted Christianity the status of religio licita, a worship that was recognized and accepted by the Roman Empire.
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~1500 B.C.E.
The Mixtec culture begins using psilocybin in religious rituals, perhaps the first ever to do so
A codex known as the "Yuta Tnoho" that belonged to the Mixtec culture in the 1500s B.C.E. is the earliest historical record of psilocybin use in human history.