This is a timeline of philosophy in the 17th century (17th-century philosophy). 1649 – Christina, Queen of Sweden (reigned 1632–1654) invited René Descartes to educate her in his philosophical views, particularly his insight into Catholicism. Descartes arrived on 4 October 1649, and tutored her for the next 4 months until he caught pneumonia and died ten days later on 11 February 1650. Speculations have been made as to the causes of his illness. Some cite the icy weather, others argue it may have been elicited by the rigorous schedule asked of Descartes by the queen. In 1991 a German scholar published a book questioning this account and more arguments against its veracity have been raised. 1644 – Andrzej Maksymilian Fredro - Monita Politico-Moralia et Icon Ingeniorum 1649 – René Descartes - Passions of the Soul 1649 – Pierre Gassendi - Animadversiones 1649 – John Milton - Tenure of Kings and Magistrates 1688 – Gottfried Leibniz Brevis Demonstratio Erroris Memorabilis Cartesii et Aliorum Circa Legem Naturae (A Brief Demonstration of the Memorable Error of Descartes and Others About the Law of Nature) Discours de Métaphysique 1670 - Blaise Pascal - Pensées [Thoughts] (incomplete at his death in 1662) 1700 – Mary Astell, Some Reflections Upon Marriage 1607 – Francesco Sforza Pallavicino - Italian cardinal, philosopher, theologian, literary theorist, and church historian 1632 – John Locke 1649 – Samuel Bold - English advocate of John Locke's argument for religious toleration (d. 1737) 1649 – Samuel Johnson (pamphleteer) - One of the major developers of the Whig resistance theory (d. 1703) October 11 1675 – Samuel Clarke, English philosopher (d. 1729) November 19 1649 – Caspar Schoppe (born 1576) - Best known for his book Grammatica philosophica (Milan, 1628) February 21 1677 – Baruch Spinoza, Dutch philosopher (born 1632) 1662 – Blaise Pascal, French mathematician and philosopher (born 1623). 1675 – Emanuele Tesauro, Italian philosopher, rhetorician, literary theorist, dramatist, Marinist poet, and historian (born 1592).