A while back, I asked a question (now closed): What is the difference between 'genealogy' and 'family history'?. At the root of what I was trying to understand is the definition of Family History that we're adopting on this site. I still think this is worth clarifying.
For example, this question: How can I trace my ancestry in India? could be asking about Jewish and Christian History in Kerala, India in the 1st Century CE, although it is slowly getting reworded to focus on finding records about Christian and Jewish communities in that place and period. Are both topics "Family History"? Are either of them, given the likely extreme difficulty of tracing a genealogical line back to 1st century Kerala? Do we expect or even encourage an overlap with https://history.stackexchange.com/?