09:00
IRA cells launch attacks across Dublin on the homes and lodging houses of alleged British spies and agents, killing 14 people.
10:00-11:00
News of the killings has reached the British administration at Dublin Castle. Plans are made to perform a search operation at Croke Park during the Dublin-Tipperary football game taking place that afternoon
11:30
The first game of the day at Croke Park begins, a replay of the Dublin intermediate football final between Erins Hope and Dunleary Commercials. Dunleary win their first ever title
12.05
Joseph Traynor leaves home in Ballymount, outside Dublin, cycling to Croke Park. He is later shot twice in the back at Croke Park
14:00
Tom Ryan leaves home in Stoneybatter for Croke Park. He dies whispering a prayer to the dying Tipperary player, Michael Hogan. James Burke leaves Windy Arbour for Croke Park. He is crushed in the stampede
14:30
James Teehan, bar owner, leaves Green Street in the city centre for Croke Park. He is crushed in the crowd trying to escape. Daniel Carroll leaves the pub in Drumcondra where he works. He is shot in the leg as he leaves the ground and dies two days later
14:45
The game between Tipperary and Dublin is delayed by 30 minutes due to the huge crowd still entering Croke Park. The attendance numbers around 15,000
15:15
The game begins. Soldiers arrive from Collinstown Aerodrome and take positions along Clonliffe Road to control the crowd as they exit the ground after the police searches inside Croke Park. An airplane overhead circles the pitch and fires off a flare
15:25
Over a dozen trucks containing RIC, Black and Tans and Auxiliary police arrive on the canal bridge outside Croke Park
15:26
The firing starts from the canal bridge. Eleven-year-old William Robinson, sitting in a tree watching the game, is the first victim. The shooting lasts 90 seconds and claims 14 lives.
17:00-17:30
The last spectators are searched and the Tipperary team corralled against the Railway wall at the Hill 60 end of the ground, are released by Major EL Mills, commanding officer of the Auxiliary force.