Okla. Stat. tit. 25, § 25-90.4: Prisoners of War Remembrance Day in Oklahoma

April ninth of each year is hereby established as "Prisoners of

War Remembrance Day" in Oklahoma. The sacrifices of those persons

who suffered captivity in foreign lands while in the service of

their country shall be commemorated on this day. All citizens of

this state are requested to devote some portion of Prisoners of War

Remembrance Day to solemn contemplation on the plight of the men and

women of this country who have been held prisoners of war. Teachers

and students of the schools of this state are requested to observe

the day with appropriate exercises.