In 1775, Darwin met Elizabeth Pole, daughter of Charles Colyear, 2nd Earl of Portmore, and wife of Colonel Edward Pole ( 1718 – 1780 ); but as she was married, Darwin could only make his feelings known for her through poetry.

( 1727 – 1775 ) and Elizabeth Steptoe ( 1743 – 1789 ), who married secondly, Philip Richard Fendall I ( 1734 – 1805 ).

# Sarah Caldwell " Sally " Lee ( 1775 – 1837 ), who married Edmund Jennings Lee I ( 1772 – 1843 ), son of Maj. Gen. Henry Lee II ( 1730 – 1787 ) and Lucy Grymes ( 1734 – 1792 ).

He married Helena Cookes ( an amateur botanical illustrator, and erstwhile patient of his ) in 1772 ; they had three children ( the first, Helena was born in 1775 but died a few days later, William was born in 1776, and Charlotte in 1778 ).

# Maria Anna of Savoy ( 17 December 1757 – 11 October 1824 ) married Prince Benedetto of Savoy in 1775, no issue.

In 1775 Charles Emmanuel married Marie Clotilde of France, the daughter of Louis, Dauphin of France and Princess Marie-Josèphe of Saxony, and sister of King Louis XVI of France.

Elizabeth had married John Knowles, son of an English immigrant, and Knowles inherited the entire estate upon her death around 1775.

Caldwell married Elcy Hughes in the winter of 1775 on the south side of the river in Nippenose Township.

His mother was born Angélique de Niocel, also from a family of recent nobility ( her grandfather had been ennobled in 1775 and her brother married a niece of Marshal Joachim Murat, brother-in-law of Napoleon ).

He married twice: his first wife was Lady Sarah Frances Seymour-Conway ( 27 September 1747 – 20 July 1770 ) on 7 June 1775, he married Frances, daughter of Charles Pratt, 1st Earl Camden.

Maria married Edward Weld, 16 years her senior, a rich Catholic landowner of Lulworth Castle in July 1775.

* Cecilia Margaret Ogilvie ( 1775 – 1824 ), married Charles Lock, British consul-general in Naples and Egypt.

Du Pont married Sophie Dalmas ( 1775 – 1828 ) in 1791, and they had eight children.

Thomas Ingersoll married the seventeen-year-old Elizabeth Dewey on 28 February 1775.

# Elizabeth Mason Sedgwick, born April 30, 1775, married Thaddeus Pomeroy, and died October 15, 1827.

In 1775, George married Lady Mary Nugent, daughter of the 1st Viscount Clare ( later the 1st Earl Nugent ).

* Lord George William Frederick Osborne ( 21 July 1775 – 10 July 1838 ), later 6th Duke of Leeds ; married Lady Charlotte Townshend, daughter of the 1st Marquess Townshend, on 17 August 1797 and had issue.

* Faith Trumbull ( 1743 – 1775 ), who married General Jedidiah Huntington

His mother Rachel Moore had married Captain William Allston in 1775, though her husband died in 1781, shortly after the Battle of Cowpens.

In 1775, after Aleksandra Czartoryska married Hetman Michal Kazimierz Oginski, the town passed over to the Oginski family.

In 1775 Anna Ossilinska married John Pieniazek, bringing as a dowry her share of part of the city.

He was further aided by an advantageous marriage on 5 October 1749 to Elizabeth, daughter of Nicholas Jeffreys of the Priory, Brecknock, by whom he had a son John Jeffreys, his successor in title and estates, and four daughters, of whom the eldest, Frances, married Robert Stewart, 1st Marquess of Londonderry on 7 June 1775.

* Caroline ( b. 1775 ), married Colonel Duncan of the East India Company, 1797

* 1775 – The first abolition society in North America is established.

The first building society to be established was Ketley's Building Society, founded by Richard Ketley, the landlord of the Golden Cross inn, in 1775.

The first permanently settled Scottish community on Cape Breton Island was Judique, settled in 1775 by Michael Mor MacDonald.

* 1775 – The becomes the first vessel to fly the Grand Union Flag ( the precursor to the Stars and Stripes ); the flag is hoisted by John Paul Jones.

Vancouver's first naval service was as a midshipman aboard, on James Cook's second voyage ( 1772 – 1775 ) searching for Terra Australis.

* Steam power – The improved steam engine invented by James Watt and patented in 1775 was at first mainly used to power pumps for pumping water out of mines, but from the 1780s was applied to power other types of machines.

* 1775 – The American Revolutionary War's first naval engagement, the Battle of Machias, results in the capture of a small British naval vessel.

In 1775, Atake Tynay Biy Uulu one of the leaders of Sarybagysh tribe established first diplomatic ties with the Russian Empire by sending his envoys to Catherine the Great in Saint Petersburg.

At first called the Lunar Circle, " Lunar Society " became the formal name by 1775.

The first was probably that held on 31 December 1775, and the " Lunar " name is first recorded in 1776.

* 1775 – An anonymous writer, thought by some to be Thomas Paine, publishes " African Slavery in America ", the first article in the American colonies calling for the emancipation of slaves and the abolition of slavery.

* 1775 – John Murray, the Royal Governor of the Colony of Virginia, starts the first mass emancipation of slaves in North America by issuing Lord Dunmore's Offer of Emancipation, which offers freedom to slaves who abandoned their colonial masters in order to fight with Murray and the British.

The first European to enter the bay is believed to have been the Spanish explorer Juan de Ayala, who passed through the Golden Gate on August 5, 1775 in his ship the San Carlos, and moored in a bay of Angel Island now known as Ayala Cove.

Captain James Cook circumnavigated the island in 1775 and made the first landing.

The first military submarine was the Turtle ( 1775 ), a hand-powered acorn-shaped device designed by the American David Bushnell to accommodate a single person.

After the American Revolution ( 1775 – 1783 ) many loyalists fled to Caribbean colonies, including ( in 1783 ) the first settlers on the Caicos Islands ; cotton became an important crop briefly.

He was commissioned as a major, then became George Washington's aide-de-camp and, on August 14, 1775 Washington appointed him to become the army's first Quartermaster General under order of Congress.

* armed sloop ( 18 May 1775 – 7 July 1777 ), the first American ship to bear the name served on Lake Champlain

* 1775: Joseph Priestley first synthesis of " phlogisticated nitrous air " Nitrous Oxide " laughing gas "

* March 27 – The United States Government authorizes the building of the first six United States Navy vessels ( in 1797 the first three frigates, USS United States, USS Constellation and USS Constitution go into service ), not to be confused with October 13, 1775 which is observed as the Navy's Birthday.

The original Beaumarchais version was first performed in 1775, in Paris at the Comédie-Française at the Tuileries Palace.

The route led first to the South Atlantic, then through the Indian Ocean and the Southern Ocean to the island of Polynesia and finally around Cape Horn back to England, where the expedition arrived on July 30, 1775.