14th century BC - evidence of wax tablets usage (see Uluburun shipwreck)
500 BC - art depicting writing with a wax tablet and stylus
Wax tablets used by ancient Romans and Greeks
1860s - Pantelegraph
1888 - Teleautograph patented by Elisha Gray
1957 - Stylator, the first use of a stylus in an electronic computing device
1957 - Lightpen - first tech that allows a suser to draw directly on the screen
1963 - SketchPad software created by Ivan Sutherland
1964 - The RAND Tablet
1975 - BitPad by Summagraphics
1979 - Apple Graphics tablet released
1981 - Quantel Paintbox released
1982 - Adobe founded (December 1982)
1983 - KoalaPad released
1983 - Wacom founded (July 12 1983)
1983 - Wacom produces first drawing tablet with a battery-powered pen
1984 - Wacom launches WT-460M - the first tablet with stylus not attached by cord to the tablet [1a]
1987 - Wacom releases first drawing tablet with EMR technology
1987 - Wacom creates a Mac app called Pressure Paint - may be the first application to support pressure sensitivity available on a computer available to consumers
1989 - GRiDPad by GRiD Systems Corporation - first tablet computer
1990 - Adobe Photoshop released (Feb 19, 1990)
1991 - Painter (later Fractal Design Painter) published - one of the very earliest apps to support drawing tablets
1993 - Quantel Paintbox discontinued
1993 - Apple Newton released
1999 - Microsoft starts working on Tablet PC
2002 - First Tablet PCs released by OEMs running Windows XP Tablet PC Edition
2005 - XP-Pen founded (April 8, 2005)
2006 - Microsoft Windows Vista released (Nov 30, 2006)
2009 - Microsoft Windows 7 released (July 22, 2009)
2010 - Apple iPad released (April 3, 2010)
2011 - Huion founded (Mar 12, 2011)
2011 - Procreate app released (Mar 16, 2011)
2012 - Around this time many key Wacom patents expire
2015 - Apple Pencil (1st gen) released (Nov 11, 2015)
2018 - Apple Pencil (2nd gen) released (Nov 7, 2018)
2023 - Apple Pencil (USB-C) released (Nov 1, 2023)
2023 - Wacom patents for erasers in pens expires (need to verify)
2023 - XP-Pen introduces X3 Pro pen - first in their line of pens to have chip on their PCB
2024 - Huion introduces PW600 and PW600 pens - first in their line of pens to have chip on their PCB
General
CalComp
Quantel PaintBox
KoalaPad