Boolean Algebra (13h 23min, nov 22, 1847 y – 8h 27min, jul 29, 1854 y)
Description:
It is a branch of algebra in which the values of the variables are the truth values true and false, usually denoted 1 and 0 respectively. It was created 1847. Image: https://www.google.com/search?q=when%20was%20boolean%20algebra%20invented&rlz=1CADEAF_enUS758US758&source=lnms&tbm=isch&sa=X&ved=0ahUKEwinnZ2ns_jWAhUL04MKHcTzCaoQ_AUICygC&biw=1366&bih=630&safe=active&ssui=on#
Added to timeline:
Date:
13h 23min, nov 22, 1847 y
8h 27min, jul 29, 1854 y
~ 6 years and 8 months