Assertion: computer's mouse | /r/HasProperty | invented by douglas engelbart
Facets:
value: in 1963
type: TEMPORAL
Source sentences:
text: The mouse was originally known as the X-Y Position Indicator for a Display System and was invented by Douglas Engelbart in 1963 while working at Xerox PARC.
text: The mouse was originally known as the X-Y position Indicator for a display system and was invented by Douglas Engelbart in 1963 while working at Xerox PARC.