Why is chicken considered meat and not parve like fish?

I wanted to ask a question. I know more about being kosher, than preparing and doing a seder. I was raised in a secular home. I thought I knew more but I don't . Where do I find the fundamentals of preparing for passover and preparing . I mean the Halachah for passover.

i AM WRITING ABOUT THE THE ORIGINATION OF THE SHTETL 1) DID IT START WITH THE EXPULTION FROM ISRAEL (THE WONDERING JEW) OVER TWO THUSAND YEARS EGO OR WITH THE EXPULTION FROM SPAI, SHLOMO VIGDOR BREITBURG

shabbat chatan is celebrated befor or after the wedding?and can shabbat chatan take place on rosh hashan? your respond is highly appriciated.mrs kalman

My father passed away in October. What should we do once we have a gravestone pt on his grave? What is an unveiling? What is the significance of a bris? My sister-in-law had her newborn son circumcised in the hospital but didn't wanta bris. Both parents are Jewish. Does this mean that the boy is not Jewish? Thanks.