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1614
| 1614 • Scottish mathematician John Napier publishes Mirifici Logarithmorum Canonis Descriptio (Description of the Admirable Table of Logarithms), outlining his discovery of logarithms and incorporating the decimal mark. Astronomer Johannes Kepler soon begins to employ logarithms in his description of the solar system. |
1640
Age: 26y
marriageMaritje Ariens 2 Sources ⇓ |
| 1640 • End of the Iberian Union: A revolution organized by the nobility and bourgeoisie causes John IV of Portugal to be acclaimed as king, thus ending 60 years of personal union of the crowns of Portugal and Spain, and the rule of the House of Habsburg (also called the Philippine Dynasty). The Spanish Habsburgs do not recognize Portugal's new dynasty, the House of Braganza, until the end of the Portuguese Restoration War in 1668. |
1646
Age: 32y
birth of childMarytjie Pieterse Quackenbosch 2 Sources ⇓ |
| 1646 • Spain and the Netherlands sign a temporary cease fire in the war. |
1653
Age: 39y
| 1653 • Marcello Malpighi becomes a doctor of medicine. |
1686
Jan 4
Age: 72y
| 1686 • Russia, Saxony, Brandenburg and Bavaria join the Holy League against the Ottoman Turkish Empire. Imperial forces under Austrian leadership invade Ottoman-occupied Hungary and advance on Budapest. |