c. February - The English Parliament and bishops seek to suppress Thomas Hobbes' treatise Leviathan.[1]
March 8 - In the Cretan War, the navy of the Republic of Venice defeats an Ottoman Empire naval force of 12 ships and 2,000 galleys that had attempted to seize a small Venetian galley near the port of Agia Pelagia.
March 23 - The Bawdy House Riots of 1668 take place in London when a group of English Dissenters begins attacking brothels, initially as a protest against the harsh enforcement of laws against private worshippers and the lack of enforcement of laws against prostitution. Over a period of three days, rioters who join in the violence destroy brothels in the London districts of Poplar, Moorfields, East Smithfield, St Leonard's, Shoreditch, St Andrew's and Holborn.
March 27 - King Charles II of England signs an agreement with representatives of the English East India Company to lease the Indian city of Bombay (modern-day Mumbai) to the company for a rent of 10 pounds sterling per year, with transfer taking effect on September 21.
June 4 - Tangier, a city in Morocco that had come under control of the English colonial empire in 1661, is elevated by the English crown to the status of "free city".
June 12 - John Dryden's play An Evening's Love, or The Mock Astrologer premieres at the Theatre Royal in London in a performance by the King's Company players for King Charles and Queen Catherine.
June 16 - A group of Spanish Jesuit missionaries become the first European settlers to arrive at the island of Guam, founding a mission to convert the Chamorro people of the Mariana Islands to Christianity.
June 18 - Petro Doroshenko is proclaimed by the Russian Empire as the hetman of all of Ukraine, after having previously been granted leadership of the western half. Ivan Briukhovetsky, who had ruled the eastern half and then led an uprising, is executed on the same day.
October 5 (September 25 O.S.) - The English blockade of the Moroccan port of Salé begins as HMS Garland and HMS Francis retaliate for raids from the port by the Barbary pirates. The blockade lasts for 10 days.
Jianshe Lei . Dapeng Zhao . Xiwei Xu . Mofei Du . Qi Mi . Mingwen Lu . P-wave upper-mantle tomography of the Tanlu fault zone in eastern China . Physics of the Earth and Planetary Interiors . 2020 . 299 . 106402 . 106402 . 10.1016/j.pepi.2019.106402. 2020PEPI..29906402L . free .