Entering in different information (Dates, places) provided by different sources.
WXMX-999 said: Add specific fields for secondary or alternate dates of birth, marriage, death, etc. There are people with records that give different dates. One marriage record says they got married on this day, but another record says they got married 2 days later. If there were fields dedicated to capturing these alternate dates, and then making them searchable, it would make it easier to find someone who got married on either of those dates. And it would lessen the likelihood of duplicate record creation because people create entirely new records based on different dates. The same could apply for places. The original place of birth would be entered in the main field, but allow additional places to be recorded in secondary fields that are also searchable.