Unorthodox Behavior

A puzzle from the 18th century — punctuate this sentence so that it makes sense:

King Charles the First walked and talked half an hour after his head was cut off.

	Select Click for Answer
“King Charles the First walked and talked; half an hour after, his head was cut off.” From Peter Puzzlewell, A Choice Collection of Riddles, Charades, and Rebuses, 1794.