Answer: the american civil war
Explanation:
Matthew brady was born in 1823 & died in 1896
the civil war ran from 1861 to 1865
the french revolution was from 1789-1799 - (matthew was not born yet)
The six day war took place in June of 1967 ( matthew was deceased)
World War 1 took place from 1914 to 1918 ( matthew was deceased)
The logical answer is the american civil war
