The cotton gin was invented by Eli Whitney in 1794, after the Age of Enlightenment had ended.

Galileo Galilei is credited with inventing the telescope in 1609.

Antonie van Leeuwenhoek invented the simple microscope in the 17th century.

The theory of relativity was developed by Albert Einstein in the 20th century, not by Isaac Newton.

William Harvey discovered the circulation of blood in the 17th century.

Francis Bacon developed the inductive method in the 17th century.

The steam locomotive was invented by Richard Trevithick in the 19th century, not by Thomas Savery.

Robert Fulton invented the first practical steamboat in 1807.

The Montgolfier balloon, invented by the Montgolfier brothers, was the first air balloon to carry humans in 1783.

The invention of the bifocal lens is attributed to Benjamin Franklin, not to Benjamin Franklin.

Blaise Pascal invented the first mechanical calculator in the 17th century.

The flying shuttle was invented by John Kay in the 18th century.

The discovery of the circulation of blood is attributed to William Harvey, not to Carl Linnaeus.

Antoine Lavoisier discovered the law of conservation of mass in the 18th century.

The smallpox vaccine was developed by Edward Jenner in the 18th century.