It's wonderful to hear that you are researching your Irish roots.
In 1864 civil registration was introduced in Ireland, which is when we started seeing the formal registration of births, marriages, adoptions and deaths. These records
have been kept at the General Register Office of Ireland (GRO) to this day.
Another good resource for researching Irish ancestry is the National Archives of Ireland website, where you can look up the Census of Ireland
in both 1901 and 1911 as well as Census fragments between 1821 and 1851.
I hope this information is helpful to you.