Timeline of World War I

List of significant events occurring during World War I

This is a list of the events of World War I in chronological order.

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Theatres of World War I

Europe

Western Front
Eastern Front
- Romania
- Finland
Italy
Balkans
- Serbia
- Macedonia
- Greece

Middle East

Caucasus
Gallipoli
Sinai & Palestine
Mesopotamia
Persia
Hejaz & Levant
South Arabia
Central Arabia

Africa

South West Africa
- South Africa
Togoland
Cameroon
East Africa
North Africa
- Libya
Somaliland
- Ethiopia

Asia-Pacific

Tsingtao
Samoa
New Guinea
North-West Frontier
Central Asia

Naval theatres

U-boat
North Sea
Atlantic
Mediterranean
Black Sea
Baltic Sea
Indian and Pacific Ocean