Main Page | See live article | Alphabetical index Centuries: 16th century - 17th century - 18th century Decades: 1630s 1640s 1650s 1660s 1670s - 1680s - 1690s 1700s 1710s 1720s 1730s Years: 1681 1682 1683 1684 1685 - 1686 - 1687 1688 1689 1690 1691 Table of contents 1 Events 2 Year in topics 3 Births 4 Deaths Events April 28 - Publication of volume one of Isaac Newton's Principia Mathematica The League of Augsburg is founded. Year in topics 1686 in science Births May 24 - Gabriel Fahrenheit, physicist, inventor (+ 1736) Deaths November 20 - Otto von Guericke, German physicist, inventor (*1602) This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.