This printable word search puzzle on the topic of World History (General) contains 12 hidden words in a 24x24 letter grid. Words go horizontally, vertically, backwards, and diagonally. This word search is also available to download as a Microsoft Word document or a PDF.
electric light bulb
sewing machine
postage stamps
pasteurizing
photography
typewriter
post boxes
morse code
ice cream
concrete
x-ray
car