Tivadar Kanizsa was born on April 4, 1933, in Debrecen,
Hungary.
View page
Tivadar Kanizsa died on November 4, 1975, in Jszkisr, Hungary of
car accident.
View page
The Kanizsa Triangle is an illusion. This contour is created
with three circles that are wedged and three angles that are black.
They are all placed in the image so that they face the center
point.