John Dalton
John Dalton had a lot of very interesting discoveries. One of Dalton's early discoveries was the hereditary red-green color-blindness in 1794. We believe that John and his brother strived to discover this because his brother and him were born color blind. Also, he discovered that all atoms are unique in different elements around the year of 1803. In other words the atoms in one element are different then the atoms in a different element. He also discovered that elements can combine with other elements to form compounds also in 1803. Compounds are substances formed when two or more elements are chemically joined. Salt, water, and sugar are examples of compounds. When they are chemically joined the atoms lose their individual properties and gain different properties formed by the element that just joined. All of these discoveries were important because they led people to get a good idea about the atomic theory and the atom.