Start here
FamilySearch
FamilySearch is a free family history website with a shared family tree, historical records, memories, research help, and learning resources. It is a good first stop when you want to search for an ancestor, attach sources, preserve photos, or find what records may exist for a place and time period.
Because the FamilySearch tree is collaborative, treat hints and existing tree connections as clues. The strongest family history work is backed by original records, careful dates and places, and source notes that explain why a match is trustworthy.