Through the microscope, we find that every plant is made up of cells

The first scientist was Matthias Schleiden,a botanist who liked to study plants under a microscope.From his years of studying different plant species, it finally dawned on him that every single plant he had looked at were all made of cells.At the same time,on the other end of Germany was Theodor Schwann,a scientist who not only studied slides of animal cells under the microscope and got a special type of nerve cell named after him,but also invented rebreathers for firefighters,and had a kickin' pair of sideburns.After studying animal cells for a while,he, too, came to the conclusion that all animals were made of cells.