A brief history of the major Leica milestones:
- 1849 The optician Carl Kellner founds an Optics Institute in Wetzlar.
- 1869 Ernst Leitz becomes managing director.
- 1914 Oskar Barnack constructs the Ur-Leica.
- 1924 Ernst Leitz II decides to put the 35 mm Leica (Leitz Camera) into mass production.
- 1925 The LEICA I with inbuilt lens is launched.
- 1930 The first LEICA camera with interchangeable threaded mount and interchangeable lenses is released.
- 1932 The 100,000th LEICA II rolls off the conveyor belt.
- 1934 The LEICA 250 ‘Reporter’ contains a ten-metre film and delivers 250 exposures without the need for reloading.