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Births on June 21

John Dollond
1706Jun, 21

John Dollond

John Dollond, English optician and astronomer (d. 1761)
John Dollond FRS (10 June O.S. (21 June N.S.) 1706 – 30 November 1761) was an English optician, known for his successful optics business and his patenting and commercialization of achromatic doublets.

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Events on 1706

  • 23May

    Battle of Ramillies

    John Churchill, 1st Duke of Marlborough, defeats a French army under Marshal François de Neufville, duc de Villeroy in the Battle of Ramillies.
  • 7Sep

    Siege of Turin

    War of the Spanish Succession: Siege of Turin ends, leading to the withdrawal of French forces from North Italy.