Scientific intervention is necessary to unearth buried mysteries.

Explanation

For if you think history has any relevance in our life, we must get at the truth. There are so many mysteries which remain unsolved. For example, we know very little about the Indus valley civilization. The seals remain un-deciphered. This needs scientific investigation. Without scientific intervention they will remain in the dark.
OR
Against
No doubt we need to know the past. History has relevance in our life. But sometimes we take it too far. King Tut's mummy has been repeatedly investigated. In spite of spending millions of dollars, nothing new has been revealed. We must utilize our resources to help the living rather than investigating the dead.