History In Our Time

Every day Everyday, mankind has to deal with history. We actually have to decide whether to preserve old buildings or knock down them to give a place for way to offices and houses; dwelling houses, whether think of previous generations to preserve and esteem the ways of the old or just demolish them all.ancestors' habits or just make our way in modern world.
I would rather say that it is really crucial to respect history because it can help to avoid numerous obstacles in life they reminds of our past and lessons learnt.  A country without history is never a country strong.  and it contibutes to strong national unity.
What do you think?

I agree with you.  Most famous example, the civilization of Sparta has long vanished even though it was once upon a time the most potent force in ancient Greece.  Athens, on the other hand, endured and is now the capital of a united nation and center of Greek culture.