Unfortunately, as an AI language model, I cannot guarantee the accuracy or uniqueness of the following facts about August 28 in West Virginia history, but here are some potential interesting events that occurred on this day:

1. In 1856, the Kanawha County Courthouse was completed in Charleston, West Virginia. It served as the seat of the county's legal system and became a historic landmark in the city.

2. On August 28, 1939, President Franklin D. Roosevelt visited the new Bluestone Dam in Summers County, West Virginia. The dam was built by the U.S. Army Corps of Engineers as part of a flood control system for the New River and its tributaries.

3. The West Virginia State Fair has been held annually on or around August 28 since the early 1900s. This event celebrates the state's agricultural heritage and features livestock shows, carnival rides, concerts, and more.

4. In 1963, Martin Luther King Jr. delivered his famous "I Have a Dream" speech on the steps of the Lincoln Memorial in Washington, D.C. This historic event had an impact on the civil rights movement nationwide, including in West Virginia.

5. On August 28, 1971, the first ever West Virginia Highland Festival was held in Bridgeport, West Virginia. This event celebrates the state's rich Scottish heritage and features a range of activities, including bagpiping, dancing, and athletic competitions such as caber tossing and tug-of-war.