Do you think it’s important to study history of the world? Why or why not?
Extremely important to study all aspects of reality, both history and structure.
There is a truism in life – “those who fail to study history are bound to repeat it”.
The more knowledge we have, the more real choice we obtain thereby.
So yes – study history, and study logic, mathematics, physics, chemistry, evolution, biochemistry, and everything else – all of it is important, all connected in subtle and not so subtle ways.
[Addendum November 2016]
Not all systems repeat.
Not all systems are predictable.
To the extent that we are working with repeating systems, history can be a directly useful model.
To the degree that we exist in complex and chaotic and evolving systems, history can give us ample examples of that fact.
Learning to distinguish between these two sets, and the actions appropriate in each, seems to be the major part of wisdom.