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Myth vs. Evidence

Getting it right is the higher form of respect.

These claims circulate widely, often with good intentions. Correcting them is not an attack on the people who repeat them — and in nearly every case the documented achievement is more interesting than the myth.

The claim

Unverified

George Washington Carver invented peanut butter.

What the evidence shows

Ground-peanut pastes were prepared long before Carver, and patents for peanut-paste processes were granted in the 1880s and 1890s — to Marcellus Gilmore Edson in Canada (1884) and John Harvey Kellogg in the United States (1895). Carver's peanut work began later and was about crop utilisation, not this product.

What is certain

Carver was a serious agricultural scientist whose crop-rotation and soil-restoration work materially helped Southern farmers, and who published extensively on uses for peanuts and sweet potatoes.

What remains uncertain

Nothing about the peanut-butter claim survives scrutiny; the real contribution is larger and better documented than the myth.

  • Peanut paste patent records, 1884 and 1895 — Canadian and United States patent offices
  • Carver bulletins and correspondence — Tuskegee University Archives

The claim

Disputed

Lewis Latimer invented the light bulb.

What the evidence shows

The incandescent lamp had many contributors before and around Edison. Latimer's granted patent, US 252,386 (1882), covers a process for manufacturing carbon filaments — a genuine and important improvement to how bulbs were made.

What is certain

Latimer patented a carbon-filament manufacturing process, drafted patent drawings for Bell's telephone, supervised major city lighting installations, and wrote an early standard text on incandescent lighting.

What remains uncertain

The word 'invented' is doing dishonest work here. 'Improved the filament that made the bulb practical and affordable' is both accurate and impressive.

  • US Patent 252,386 — United States Patent Office

The claim

Disputed

Philip Emeagwali invented the internet.

What the evidence shows

The internet emerged from ARPANET and the TCP/IP protocol work of the 1960s–1980s. Emeagwali won the 1989 Gordon Bell Prize for a massively parallel computation modelling petroleum reservoirs — a real achievement in parallel computing, unrelated to inventing the internet.

What is certain

The 1989 Gordon Bell Prize award is documented by the Association for Computing Machinery.

What remains uncertain

Claims that his work created the internet or its architecture are not supported by the computing record, and several biographical claims circulated online are contested.

  • Gordon Bell Prize records, 1989 — Association for Computing Machinery

The claim

Documented

Garrett Morgan invented the traffic light.

What the evidence shows

Signalled intersections existed before 1923 — a gas-lit signal stood in London in 1868, and electric signals were operating in American cities in the 1910s. Morgan's 1923 patent (US 1,475,024) covers a signal with a third, all-stop position.

What is certain

Morgan held the patent, and General Electric acquired the rights. His third position is the ancestor of the clearance interval — the amber light.

What remains uncertain

He did not invent traffic signalling as such. He solved a specific, deadly flaw in it, and that is the claim the evidence supports.

  • US Patent 1,475,024 — United States Patent Office