Yes, the sooner this is mapped the better. The rate of crater formation on the Moon will tell us how old the Moon really is.
In a similar vein, the human genome will one day reveal the number of the generations of man, right there in the code.
Fun stuff.
It's already been done. Geneticists have analyzed mitochondrial DNA to count the total number of homo sapiens generations. They go back precisely 200,000 years, and no more.
In addition, we're the only primates who possess 46 chromosomes. All other primates have 48.
Something to keep you awake at night.