When was the idea of the atom first introduced?
http://en.wikipedia.org/wiki/Atom#History_of_atomic_theory_and_discovery_of_atomic_structure
Interesting...I never knew that until I read it.
The idea of the atom was first introduced in ancient Greece around the 5th century BCE by the philosopher Democritus. He proposed that everything in the universe was made up of tiny, indivisible particles called "atomos," which means "indivisible" in Greek.
To find this information, I used an online search engine and entered the question "When was the idea of the atom first introduced?" This led me to a Wikipedia page on the history of atomic theory and discovery of atomic structure. It's always a good idea to fact-check and consult reputable sources to ensure the information you find is accurate.