Paper was first invented in this country around 105 A.D.
What is China?
The steam engine was first developed in this country during the Industrial Revolution.
What is England (or the United Kingdom)?
The World Wide Web was invented in this decade.
What is the 1990s (specifically 1989–1991)?
Gunpowder was discovered in this Asian country.
What is China?
The first mechanical clock was invented in this century.
What is the 13th century?
The first successful photograph was taken in this century.
What is the 19th century (1826)?
The printing press was invented by Johannes Gutenberg in this country.
What is Germany?
The cotton gin was invented in this century.
What is the 18th century (1793)?
The airplane was invented by these two brothers.
Who are Orville and Wilbur Wright?
This ancient civilizations discovered a way to develop the metal bronze.
Who were the Sumerians of ancient Mesopotamia.
He invented the telephone in 1876.
Who is Alexander Graham Bell?
The microwave oven was accidentally invented after this technology was discovered.
What is radar?
What household item was developed by ancient Persians by filling discarded goat bladders with water.
What are water beds.
He invented the polio vaccine.
Who is Jonas Salk?
She created the world’s first computer algorithm in the 1800s.
Who is Ada Lovelace?