It's been 100 years since the U.S. enlisted itself to enter World War I on April 6, 1917. Thursday's celebration at the National World War I Museum and Memorial in Kansas is to bring honor to the fallen soldiers who served the country in times of crisis. Over 4.7 million Americans committed to the service during the war, where 53,402 of them died in battle.

On April 6, various activities were set in place in different parts of the country. Dedication of Renovated Visitor Center and the Ceremony Commemorating the 100th Anniversary of the United States Entering World War I was held at Flanders Field American Cemetery. Anyone can join the occasion and admission is free.

Meanwhile, Centennial Exhibits throughout the State of Iowa were conducted in various museums like the Sullivan Brothers Iowa Veterans Museum & Grout Museum of History & Science, Herbert Hoover Presidential Library, and Museum and The Iowa Gold Star Military Museum. The Fort Des Moines Museum & Education Center and the State Historical Museum of Iowa chimed in with the celebration as well.

Decatur County in the First World War showed the history of the place where they joined the war in the county's courthouse. Georgia and the Great War through World War I Posters was displayed at Atlanta History Center while the Missouri State Museum also held their own memorial.

Smithsonian's National Museum of American History presented the "Uniformed Women in the Great War" and "Modern Medicine and the Great War" at their museum. The American International School - Chennai also hosted a War Poetry Celebration on April 6.

One can see a full list of activities here. U.S. World War One Centennial Commissioner Monique Seefried told Fox News, "We feel really strongly that this centennial is a unique moment to bring back to life the experiences of those who served in Europe during World War I."

A Genealogy Project was also launched where families of the victims and soldiers shared stories of the war. Various performances of the military band were done as well as aircraft flyover shows from both the U.S. and the Patrouille de France.