A time machine · 1914 – 1918

The Great War, in the words and maps of the people who lived it.

Drag a timeline and watch the front line move. Read a soldier’s letter home. Trace a single word across four years. Everything here is built from the real letters, diaries, and maps of the war.

47,407
Letters & diaries
25,973,208
Words written
1,631
Correspondents
141,266
Places mentioned
01

Read the war in its own hand

Letters & Diaries

Tens of thousands of soldiers' letters and diary entries, searchable and readable — filter by nation, date, person and type, and open any one to read it in full.

Read the letters
Letters & Diaries
02

Watch the line move

The Front, Day by Day

A scrubbable map of the Western Front, 1914–1918. Drag the timeline and watch the order of battle shift day by day, with the battles, leaders and headlines of each date.

Open the map
The Front, Day by Day
03

The whole archive at a glance

Insights

The war read by machine and drawn as one dashboard — momentum, the words that set people apart, a map of what they wrote about, and a single writer's spirits across four years.

Explore the insights
Insights
04

A parlour game from the record

The Moustache Duel

Two faces from 1914–1918, and you pick the finer moustache. An Elo ranking crowns the Great War's greatest upper lip — a light touch drawn from the photographic record.

Enter the duel
The Moustache Duel