Students utilize a Mesonet daily solar radiation to determine the times of sunrise and sunset and the length of the day. They describe how sunrise and sunset change with latitude and longitude and how the length of the day changes with...

In this grammar and writing learning exercise, students read about the use of colons when writing the time in hours and minutes. They write the correct time using a colon between the hour and minutes in 3 examples, and write a time of...

A broad collection of scholarly articles about events, people, places, and more that have had significance in the history and development of the state of Oklahoma. Users can browse the encyclopedia by alphabet, by time period, and by...

Here you will find a variety of facts about the geography of the state of Oklahoma. Find out the geographic center, total area, elevations and much more.

Learn about the career of the first famous cowgirl, Lucille Mulhall of Oklahoma.

As part of the Works Progress Administration, the Federal Art Project's goal was to provide employment to artists who would be educators and creators of public art. Read about the legacy of the Federal Art Project in Oklahoma during the...

Want to know more about the Seminole of Oklahoma? This article discusses where they live, their traditions, and more about their culture.

Learn about the personal life and career of Oklahoma senator Thomas Gore. Includes a discussion of his blindness and involvement in the Populist movement.

The very name of William Quantrill and his raiders struck fear into the people of Kansas, but it turns out he was hated by both Union and Confederate because of his bloodthirsty ways. Read this article from the Encyclopedia of Oklahoma...

A complete set of legal documents, pictures, timeline, eyewitness testimony and much, much more related to Timothy McVeigh and the famous bombing of the Federal building in Oklahoma City.

A lengthy article examining the historical background of the use of Oklahoma as a place for Native American reservations. The idea started with Jefferson and led to the eventual relocation of the Kiowa tribe.

The history of the Chickasaw Nation in Oklahoma began in 1818 when tribal leaders signed the Treaty of Old Town, ceding their lands in western Kentucky and Tennessee. Years of negotiations with the U.S. government led to failure to...

Learn about the career of peace officer and deputy United States marshall Bill Tilghman.

This biography describes the life of Bass Reeves, who fled slavery and became a United States marshall.

Learn about the life of Nathaniel Pryor, and American explore who participated in the Lewis and Clark expedition and served as a captain in the war of 1812.

Learn about the early life and aviation career of Wiley Post, who set a world record for flying around the planet.

This brief biography discusses the life of American pioneer Jesse Chisholm, who blazed the Chisholm Trail.

Video examines the impact of universal preschool in Oklahoma. Includes an audio version of the story and a transcript.

A summary of Choctaw history from 1820 when they ceded much of their land, through to the beginning of the 21st century. It oulines the many changes they went through, the treaties they signed, their support of the Confederate side...

A huge tornado in Oklahoma, USA plows its way through anything standing in its path. It whips up debri from the ground below while the storm rages on in the dark skies above.

"Out of the Dust", a Newbery Award Winning, poetic book by Karen Hesse. The heroine, Billie Joe, faces issues of forgiveness and healing during the Dust Bowl. The story is set in Oklahoma, during the Great Depression. Make a smart choice...

You can find the complete text of the Iroquois Constitution at this site.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Using time-lapse photography, this image captures numerous cloud-to-ground lightning strokes during a nighttime thunderstorm in...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Originally appearing in National Geographic Magazine, this photograph captures a lightning strike above Norman, Oklahoma.