“KNOWN AND UNKNOWN” by Donald Rumsfeld, 3 p.m., Harry S. Truman Library and Museum, 500 W. U.S. 24, Independence. Former Secretary of Defense Rumsfeld will share memories and insights from his half-century career in American politics. A book signing and light reception will follow the presentation. Copies of his book will be in the museum gift store. Free with regular museum admission. Call 268-8200.

“KNOWN AND UNKNOWN” by Donald Rumsfeld, 3 p.m., Harry S. Truman Library and Museum, 500 W. U.S. 24, Independence. Former Secretary of Defense Rumsfeld will share memories and insights from his half-century career in American politics. A book signing and light reception will follow the presentation. Copies of his book will be in the museum gift store. Free with regular museum admission. Call 268-8200.