World Creativity and Innovation Day

United Nations observance

World Creativity and Innovation Day is a United Nations observance in the USA

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San Jacinto Day

State Holiday

San Jacinto Day commemorates the Battle of San Jacinto in what is now Harris County, Texas.

TX

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Yom Ha'atzmaut

4/22/2026

Jewish holiday

Many Jewish communities in the United States celebrate Yom Ha’Atzmaut, which is Israel’s Independence Day, on the fifth day of the month of Iyar in the Jewish calendar.

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Earth Day

4/22/2026

United Nations observance

The United Nations' International Mother Earth Day promotes environmental awareness and calls for the protection of our planet.

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Oklahoma Day

4/22/2026

Local observance

Oklahoma Day in the United States marks the anniversary of the opening of Oklahoma's lands to European settlers.

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Administrative Professionals Day

4/22/2026

Observance

Administrative Professionals Day® is on the Wednesday of the last full week of April. It remembers the important role of administrative professionals.

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World Book and Copyright Day

4/23/2026

United Nations observance

World Book and Copyright Day is an occasion to celebrate the contribution of books and authors to our global culture and the connection between copyright and books.

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