This Abigail might be the daughter of Israel Whitcomb and Azibah Houghton.

Historical
1757: India - Battle of Plassey signaled the beginning of formal British rule in India after years of commercial activity under the auspices of the East India Company
1758: England - British colonel James Wolfe Issues the Wolfe Manifesto
1758: United States - James Monroe born
1759: France, England - French commander Louis-Joseph de Montcalm and British commander James Wolfe die during the Battle of the Plains of Abraham
1760: England - George III became King of Britain
1760: Iran - Zand dynasty founded in Iran
1761: France, India - Battle of Panipat, France defeats Maratha Empire
1762-1796: Russia - Reign of Catherine the Great of Russia
1763: India - Treaty of Paris ends Seven Years War and Third Carnatic War
1763: Omdoa - Kingdom of Mysore conquers the Kingdom of Keladi
1765: United States, England - Stamp Act Introduced into the American colonies by the UK Parliament
1766-1799: India - Anglo-Mysore Wars
1767: Burma - Burmese conquered the Ayutthaya kingdom
1768-1774: Russia, Turkey - Russo-Turkish War (sixth of ten), Russian victory
1768: Nepal - Gurkhas conquered Nepal
1769-1770: New Zealand, Australia - James Cook explores and maps New Zealand and Australia
1769-1773: India - The Bengal famine of 1770 killed one third of the Bengal population
1769: United States - James Watt invents the steam engine, this begins the Industrial Revolution
1769: United States - Spanish missionaries established the first of twenty one missions in California
1770-1771: Czech Republic - Famine in Czech lands killed hundreds of thousands
1770: Australia, England - James Cook claims the East Coast of Australia (New South Wales) for Great Britain
1770: United States - Boston Massacre occurs when British troops fire into a crowd of snowball throwers, killing five. John Adams later defends in court the British troops involved, this actually boosts John Adams' reputation because it demonstrates to the British that the Americans are fair
1771: England - Richard Arkwright and his partners build the first water-powered mill at Cromford
1771: Russia - The Plague Riot in Moscow
1772-1779: England, India - Maratha Empire fights Britain and the forces of Raghunathrao during the First Anglo-Maratha War
1772-1795: Poland - The Partitions of Poland ended the Polish-Lithuanian Commonwealth and erased Poland from the map for 123 years
1772: Denmark - Reformer Johann Friedrich Struensee executed in Denmark
1772: Poland - Partitions of Poland marks the end of the Polish-Lithuanian Commonwealth
1772: Sweden - Gustav III of Sweden stages a coup d etat, becoming almost an absolute monarch
1773-1775: Russia - Pugachev Rebellion was the largest peasant revolt in the history of Russia
1773: India, China - East India Company starts operations in Bengal to smuggle Opium into China
1775-1783: United States, England - American Revolutionary War
1775: United States - Daniel Boone begins to clear the Wilderness Road to Kentucky
1775: globe - John Harrison H4 and Larcum Kendall K1 Marine chronometers are used to measure longitude by James Cook on his Second voyage (1772-1775)
1776: Germany - Order of Illuminati founded by German philosopher Adam Weishaupt
1776: United States - United States Declaration of Independence is written by Thomas Jefferson and others then is adopted by the Second Continental Congress meeting in Philadelphia