xth century
51Bar Kokhba — orig. Simeon bar Kosba died AD 135 Leader of an unsuccessful Jewish revolt against Roman rule in Palestine. In 131 Hadrian forbade circumcision and built a temple to Jupiter on the ruins of the Temple of Jerusalem. The Jews rebelled in 132, led… …
52high-pressure phenomena — ▪ physics Introduction changes in physical, chemical, and structural characteristics that matter undergoes when subjected to high pressure. pressure thus serves as a versatile tool in materials research, and it is especially important in… …
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