1900: Gwahaniaeth rhwng fersiynau

Canrifau: [[18fed canrif]] - '''19fed canrif''' - [[20fed canrif]]

Degawdau: [[1850au]] [[1860au]] [[1870au]] [[1880au]] [[1890au]] - '''1900au''' - [[1910au]] [[1920au]] [[1930au]] [[1940au]] [[1950au]]

== Digwyddiadau ==

* [[24 Ionawr]] - [[Brwydr Spion Kop]]

* [[14 Mai]] - Agorfa y [[Gemau Olympaidd]] ym [[Paris|Mharis]].

* '''Llyfrau'''

** [[Joseph Conrad]] - ''Lord Jim''

** [[Theodore Dreiser]] - ''Sister Carrie''

** [[Owen Morgan Edwards]] - ''Tro yn Llydaw''

** [[David Brynmor Jones]] & [[John Rhys]] – ''The Welsh People''

** [[Allen Raine]] - ''Garthowen''

** [[Ernest Rhys]] – ''The Whistling Maid''

** [[Silyn Roberts]] & [[William John Gruffydd|W. J. Gruffydd]] -''Telynegion''

** [[Bertrand Russell]] - ''A Critical Exposition of the Philosophy of Leibniz''

* '''Drama'''

** [[Anton Chekhov]] —— ''Dyadya Vanya''

** [[August Strindberg]] —— ''Dödsdansen''

* '''Cerddoriaeth'''

** [[Gustave Charpentier]] - ''Louise'' (opera)

** [[Reinhold Glière]] - Symffoni rhif 1

== Genedigaethau ==

* [[4 Chwefror]] - [[Jacques Prévert]], bardd (m. 1977)

* [[22 Chwefror]] - [[Luis Buñuel]] (m. 1983)

* [[5 Ebrill]] - [[Spencer Tracy]], seren ffilm (m. 1967)

* [[19 Ebrill]] - [[Richard Hughes]], nofelydd (m. 1976)

* [[3 Mehefin]] - [[David Wynne]], cyfansoddwr (m. 1983)

* [[4 Awst]] - [[Elizabeth Bowes-Lyon]], gwraig [[Siôr VI, brenin y Deyrnas Unedig]] (m. 2002)

== Marwolaethau ==

* [[20 Ionawr]] - [[R. D. Blackmore]], nofelydd, 74

* [[22 Ionawr]] - [[David Edward Hughes]], gwyddonydd, 68

* [[22 Mawrth]] - [[Thomas Charles Edwards]], ysgolhaig, 62

* [[5 Mehefin]] - [[Stephen Crane]], awdur

* [[19 Gorffennaf]] - [[Umberto I, brenin yr Eidal]], 56

* [[25 Awst]] - [[Friedrich Nietzsche]], athronydd, 55

* [[30 Tachwedd]] - [[Oscar Wilde]], dramodydd, 46

== Eisteddfod Genedlaethol ([[Lerpwl]]) ==

* Cadair - [[John Owen Williams]]

* Coron - [[John Thomas Job]]