Centuries: 6th century - 7th century - 8th century
Decades: 640s 650s 660s 670s 680s - 690s - 700s 710s 720s 730s 740s
Years: 688 689 690 691 692 - 693 - 694 695 696 697 698
Births
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... Contents Dennis Gabor Dennis Gabor (Gábor Dénes) (1900-1979) was a Hungarian physicist. He invented holography in 1947, for ...