The answer is different for each city, state or country. In general, the universal registering of births began in the late 1800s, although some places registered some births decades earlier than that.
For the period prior to the civil registration of births, baptismal records are used for genealogical purposes.
29/10/2011
Switched at Birth - 2011 The Shock of Being Seen 1-25 is rated/received certificates of: Netherlands:AL
1948 The Birth of a New Specimen of Human Being - 2009 is rated/received certificates of: UK:15 (DVD rating)
To certify your birth?
Birth - 2011 is rated/received certificates of: Canada:13+
Birth of a Band - 1954 is rated/received certificates of: USA:Approved
A Difficult Birth - 2009 is rated/received certificates of: Australia:M
Birth of a Legend - 1974 is rated/received certificates of: USA:G
Switched at Birth - 2011 is rated/received certificates of: Netherlands:AL
Yes they will be.
Birth certificates do not have "samples", being legal documents there is only an original and any certified copies made of it.
Birth of Jazz - 1932 is rated/received certificates of: USA:G (1972)
Birth Control - 2010 is rated/received certificates of: Portugal:M/4