- Biography
- african-american
- armstrong, edwin h
- artists
- astronauts
- astronomers
- athletes
- authors
- bell, alexander, graham
- berliner, emile
- bessemer, henry
- british monarchs
- by region
- civil rights leaders
- edison, thomas alva
- explorers
- hackworth, timothy
- heron of alexandria
- holland, john
- inventors
- lake, simon
- marconi, guglielmo
- meucci, antonio santi giuseppe
- morse, samuel finley breese
- murdoch, william
- native americans
- pope, frank
- reviews
- specific texts online
- telford, thomas
- trevithick, richard
- watt, james
- westinghouse, george
- whitworth, sir joseph
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