The document traces the history and development of photography from 1727 to 2012, starting with the discovery that silver nitrate could capture images when exposed to light, paving the way for the first photographs. Key developments included Joseph Niepce creating the first photograph using a camera obscura in 1814, Louis Daguerre inventing the daguerreotype process in 1837, and George Eastman inventing the first roll-film camera in 1888. The Polaroid camera, introduced in 1948, allowed people to develop photos immediately from the camera. Digital photography began in the 1970s and became accessible to the public in the 1980s and 1990s with digital cameras and camera phones.

1. Home learning

2. 1727 The discovery that silver nitrate
changes
• Johann Heinrich Schulz discovered that a substance called
silver nitrate would change color when exposed to light. This
paved the way for the first pictures to be taken and
processed.

3. 1814 the camera obscura is
developed
• Joseph Niepce developed the camera obscura and took the
first photo with it. It wasn't ideal, though, because it took 8
hours of light exposure to make a picture, and the picture
faded with time.

4. 1837 The Daguerreotype was
invented
• Louis Daguerre invented a new way to take pictures. It only
needed 30 minutes of light exposure, and the image didn't
fade with time.

5. 1841 Making multiple copies possible
• William Henry Talbot developed the Calotype process. This
made it possible to make multiple copies of the same picture.

6. 1851 Taking pictures gets easier
• With the new Collodion process, cameras only needed a few
seconds of light exposure to make a picture

7. 1871 Film is made easier to handle
• Up until this time pictures had to be developed immediately
after being taken. Richard Leach Maddox invented the gelatin
dry plate silver bromide process, which made it possible to
take a picture and develop it later.

8. 1888 The invention of the roll-film
camera
• George Eastman invented the first roll-film
camera.

9. 1948 The Polaroid camera is
marketed
• The Polaroid allowed people to take a photo and have it
developed immediately, right from the camera.

10. 1963 Colored film is introduced
• Polaroid came out with the first colored film

11. 1980 The first consumer camcorder is
released
• Sony put out the first consumer camcorder,
allowing people to record their memories in
real time.

12. 1974 The first digital camera is
developed
• The Sasson Company built the first digital
camera

13. 1984 The first digital camera is
marketed
• Canon put out the first digital camera for the
public, which was later improved by Pixar.

14. 1990 The first camera phones
• The camera phone technology was first used
in Japan, but it quickly spread around the
world.

15. 2001 The Easy Share camera comes
into play
• Kodak put out their Easy Share digital camera,
which made it easy to snap pictures and
download them to the computer.

16. 2012 Wireless cameras are
developed
• Kodak put out cameras that didn't have to be
connected to a computer in order to
download and share the pictures.