Hectography

Pintadera	10,000 BC
Woodblock printing	200
Movable type	1040
Intaglio (printmaking)	1430
Printing press	c. 1440
Etching	c. 1515
Mezzotint	1642
Relief printing	1690
Aquatint	1772
Lithography	1796
Chromolithography	1837
Rotary press	1843
Hectograph	1860
Offset printing	1875
Hot metal typesetting	1884
Mimeograph	1885
Daisy wheel printing	1889
Photostat and rectigraph	1907
Screen printing	1911
Spirit duplicator	1923
Dot matrix printing	1925
Xerography	1938
Spark printing	1940
Phototypesetting	1949
Inkjet printing	1950
Dye-sublimation	1957
Laser printing	1969
Thermal printing	c. 1972
Solid ink printing	1972
Thermal-transfer printing	1981
3D printing	1986
Digital printing	1991

Unissued stock certificate of the Hektograph Manufacturing Company of New York, 1880s

Hectography is a printing process that involves transfer of an original, prepared with special inks, to a pan of gelatin or a gelatin pad pulled tight on a metal frame. A machine employing this process is a hectograph, also known as a gelatin duplicator or jellygraph.