Years
Inventors
Inventions
Usage
100

That invention was amended in 1935

What is biro/ballpoint pen?

100

He invented teabags

Who is Thomas Sullivan?

100

This was invented for preserving food

What is metal can?

100

This is used on the roads

What is Cat's eye?

200
That was invented in 1870

toilet paper on a roll

200

They invented toilet paper on a roll

Who are Scott brothers (Thomas and Clarence Scott)?

200

This was invented to open the metal can

What is can opener?

200

This is used to keep pieces of paper together

What is paperclip?

300

That was invented in 1849

What is safety pin?

300

He invented a metal can 

Who is Peter Durand?

300

That was invented so people could make tea easily

What is teabag?

300

This is basically used as a timer

What is hourglass (sand clock)?
400

That was invented in 1338

What is an hourglass?

400

He invented paperclips

Who is Johann Vaaler?

400

That was invented so drivers would stay safely on the roads at night

What is Cat's eye (road reflector)?

400

This is used to write

What is ballpoint pen/biro?

500

That was invented in 1908

What is teabag

500

He invented it, but it had a problem - it leaked.

Who is John Loud?
500

W. Hunt invented it while twisting a piece of wire

What is safety pin

500

This is used to open cans

What is can opener?

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