Centuries: 8th century - 9th century - 10th century
Decades: 840s - 850s - 860s - 870s - 880s - 890s - 900s - 910s - 920s - 930s - 940s
Years: 890 891 892 893 894 895 896 897 898 899 900
... Contents Dennis Gabor Dennis Gabor (Gábor Dénes) (1900-1979) was a Hungarian physicist. He invented holography in 1947, for whic ...