1757 is a common year starting on a Saturday.
January 2: Robert Clive, who then leads Madras, called by the East India Company (English East India Company), takes Calcutta alongside Admiral Watson with 600 Europeans and 1,900 Sepoys.
January 23: King Ahmad Shah Abdali of Afghanistan captures Delhi and sacks it again. February 5: British victory over the Bengal nabob who was trying to retake Calcutta; a treaty signed on February 9 at Alinagar recognizes the arrangements made in 1717 and allows the British to fortify Calcutta. March 23: Robert Clive and Admiral Watson, violating the neutrality concluded with the agents of the French East India Company, take Chandernagor .March: Manchurian Marshal Zhao Hui defeats Dzungarian Khan Amursana besieging the Chinese occupation corps Urumqi. He advances to the Imil, in the middle of Tarbagataï, while other Chinese columns reoccupy Kouldja. The resistance of the Oïrats was defeated by the Manchus and Amoursana had to flee in the summer to Russia where he died shortly afterwards in Tobolsk, at the age of thirty-five (September). Dzungaria is annexed by China. 600,000 Dzoungars were slaughtered and the country was repopulated by Muslims from Kachgarie (Tarantchis (en)) and Gansu (Dunganes). the whole of Burma. Pégou loses all political importance. June 23: the British soldier and administrator Robert Clive defeats and kills the nabob of Bengal Siraj-ud-daulah at the Battle of Plassey in India, which opens the British to domination of Bengal. This is the beginning of British hegemony in India. Clive undertakes the conquest of the territories under French control. Bussy however seizes the British possessions on the Orissa coast (Menepelly, Bandermoulanca and Vizagapatam).July: European heat wave, felt particularly in England and France; on July 14, it is 37.5°C in Paris. July 23: the British ship Onslow is immobilized by the Chinese authorities in Chusan. The same year, the Chinese reduced European influence by limiting foreign trade to the port of Canton alone. August 3-9: French General Louis-Joseph de Montcalm, allied with the Amerindians, took Fort William Henry, on Lake George, who commands the upper Hudson Valley (August 9). It controls the Great Lakes region of North America. The king authorizes Montcalm to lead his army as he sees fit, without the consent of Governor Vaudreuil.
12,000 men reinforced the British regular army in 1757, 14,000 in 1758, 9,000 and 1759. In Canada, Montcalm, could only rely on the colonists and could hope for very few reinforcements because of the British blockade . Throughout the war he could only hire 9,000 men.
August 10: after the Afghans of Ahmad Shah Abdali withdraw (April), the Marathas attack Delhi. October 30: death of the Ottoman sultan Osman III. His cousin Mustafa III succeeded him (end in 1774). November 12: Death of Mulay Abd-Allah, Sultan of Morocco. His son Sidi Mohammed ibn Abd-Allah (Muhammad III) succeeded him (end of reign in 1790). He restores order, reorganizes the army by introducing Arabs, but does not manage to control the whole country, in particular the Sanhadja of the Middle Atlas. He signs a commercial treaty with France.
The king of Ségou Dikoro (Djékoro Coulibaly) is assassinated by members of his personal guard (“tondjons”) tired of his abuses. His younger brother, Bakari Ali, accedes to the throne and converts to Islam. He was in turn killed by his praetorians who gave themselves as sovereign Tom Mansa (Ton-Massa Dembélé), assassinated in turn in 1760.
January 11 (December 31, 1756 Julian calendar):
Russia accedes to