US Holiday On April 6 2021?

The following is a compilation of American federal holidays, federal observances, state holidays and other common patriotic and national observances and commemorations that apply to the United States during Tuesday, 2021-04-06:

• U.S. Army Day:

  April 6 commemorates the date of the United States' entry into World War I in 1917. Army Day was established by then President Roosevelt in the proclamation #2542 dated March 20, 1942. This day now serves as a nationwide observance to draw public attention to national defense and to acquaint the public with Army activities.
  • Presidential Proclamation 2542

• World War I Day:

  ^[oh-sp] The sixth day of April shall be designated as "World War I day."

• Tartan Day:

  ^[oh-sp] The sixth day of April shall be designated as "Tartan Day," in honor of the anniversary of the signing of the Declaration of Arbroath, the Scottish declaration of independence, on April 6, 1320.

Notes:

^[oh-sp] This is a special day, week or month by Statutory Designation in the State of Ohio.