When you take a picture with a camera, the result is a photograph, a picture of your subject created by a special medium’s exposure to light. The first photographs were created on metal plates coated with a special chemical.
Although photography as we know it did not emerge until the 19th century, the word photograph evolved from the ancient Greek words phot-, "light," and graph-, "writing," which were combined to create the word for taking pictures — "light writing." Nowadays we take our photographs with electronic cameras, recording, transferring, and storing the pictures digitally. Times change, and while many people still enjoy using film cameras, they are becoming increasingly rare, and certain types of films are no longer produced.