Cook Arrives in Tahiti
Apr 13 British ship Endeavour captained by James Cook, arrives in Matavia Bay, Tahiti, with botanist Joseph Banks on board
- Apr 22 Madame du Barry becomes French King Louis XV's "official" mistress
Watt's Steam Engine Patent
Apr 29 Scottish engineer James Watt's patent for a steam engine with a separate condenser enrolled (Patent 913)