This site presents a radio program (with accompanying text) focusing on Garrett Morgan, inventor of the traffic signal, gas mask, and an innovative hair straightener.

At the Mask of Lincoln website find an impressive gallery of Lincoln portraits and portraits of Lincoln's contemporaries, all captioned with interesting historical sidebars. The famous cracked-plate portrait of Lincoln, taken shortly...

At the Mask of Lincoln website find an impressive gallery of Lincoln portraits and portraits of Lincoln's contemporaries, all captioned with interesting historical sidebars. The famous cracked-plate portrait of Lincoln, taken shortly...

At the Mask of Lincoln website find an impressive gallery of Lincoln portraits and portraits of Lincoln's contemporaries, all captioned with interesting historical sidebars. The famous cracked-plate portrait of Lincoln, taken shortly...

The Smithsonian Institution provides a detailed lesson plan over Abraham Lincoln to celebrate the bicentennial of Lincoln's birth. In a PDF file, the complete lesson is provided along with visual aides needed for the lesson. Draws on...

This photo shows a man metal arc welding. He is wearing important protective equipment such as a face mask and gloves. A large number of sparks fly off the metal as he works on the welding project.

A look at the faces or grotesques that are found on the Great Dining Room ceiling of a home found in England.