Oklahoma Day, which is annually held on April 22, commemorates the date when the "Oklahoma Lands" area, which is now the state of Oklahoma, opened for European settlement.

https://www.daughtersandsonstowork.org/ Take our Daughters and Sons to Work Day is not a public holiday. Businesses have normal opening hours. Each year on the fourth Thursday in April, National Take Our Daughters and Sons to Work Day encourages parents to take their children to work. This annual event is an educational program in the United States…

The United States was one of the first countries in the world to celebrate Arbor Day, a holiday dedicated to tree planting. National Arbor Day in the USA is celebrated on the last Friday in April. Besides, each state celebrates its own state tree planting holiday. Arbor Day was founded by Julius Sterling Morton, a…

OIC will be closed in observance of Memorial Day.

OIC will be closed for the 4th of July. Have a safe and happy holiday!