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Truman Day

Guide to the date, history, cultural origins and celebration traditions of Truman Day in United States.

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History & Origins of Truman Day

Truman Day is observed as a state holiday in Missouri on May 8th. It honors Harry S. Truman, the 33rd President of the United States, born in Lamar, Missouri on May 8, 1884. Truman made critical decisions ending World War II, initiated the Marshall Plan to rebuild Europe, and navigated the start of the Cold War.

How It Is Observed & Celebrated

Marked by open houses and educational programs at the Harry S. Truman Presidential Library & Museum in Independence, Missouri, and public lectures on twentieth-century history.

Quick Facts Card

Country: United States
Holiday Name: Truman Day
Date (2026): May 08
Day (2026): Friday
Observance Type: Statutory
Observed In: Missouri

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Date Reference Matrix (3-Year Range)

Year Calendar Date Day of the Week Status
2025 May 08, 2025 Thursday Official Statutory Day Off
2026 May 08, 2026 Current Year Friday Official Statutory Day Off
2027 May 08, 2027 Saturday Official Statutory Day Off