Learning history is good. One reason is that perhaps those such as geethakasiram might learn something -- perhaps even some grammar and spelling as an incidental benefit.
History IS useful in daily life, despite claims to the contrary by illiterates such as geet...
With history, you get a perspective on how societies rise and fall, and how and why this one is falling.
But, it depends on where you get your history. Public schools are not a good source. Case in point: Public schools lionize Abraham Lincoln. Freeing the slaves and all that. The true history is that Lincoln was a totalitarian traitor who instituted another form of slavery -- the draft (conscription) of soldiers to fight in the "Civil War". The Civil War (aka the War Between the States or the War of Northern Agression ) was all about usurping the authority of the individual states and creating the Federal monstrosity under which we suffer today.
The slavery issue was just an excuse that the ignorant idiots of the time, similar to geet... today, embraced, thus allowing Lincoln to aggrandize the Federal government at the expense of the states and PEOPLE.