Going back four and five generations, unless you're from a prominent family or living in a family register-using country or something like that, the records are probably pretty spotty
don't think so, coming from small country which was part of empire until WW1 there was not much issues to track records back to around 1750 mostly thanks to church (i remember national census around 1850) and it was family of farmers and guys doing odd jobs, nothing prominent, heck i remember one couple in family tree which had even birth date hour, both born between 2-3PM it got stuck in my head or poor fella having 14 children but only 5 of them surviving and their mother dying in 42
