Which sentence states a fact?
A: The plastic toothbrush was one of the most brilliant inventions in the history of the world.
B: Centuries ago, the Chinese invented the toothbrush by attaching pig hairs to a bamboo handle.
The second sentence states a fact.
Centuries ago, the Chinese invented the toothbrush by attaching pig hairs to a bamboo handle.
It can be proved by looking up the history of toothbrushes.
The first sentence states an opinion.
The plastic toothbrush was one of the most brilliant inventions in the history of the world.
Most brilliant shows what a person believes, thinks, or feels. Another person might have a different opinion about whether the toothbrush was a brilliant invention.