Birth in 1550 is by far the most common date, but sometimes 1552 is found (inferred by some from the assertion that he started teaching at age 21 in 1573, see Pierre Bayle or 存档副本. [2007-02-12]. (原始内容存档于2007-04-16).). Thus, some sources will say "ca. 1550", or "1550 or 1552".
Birth in 1550 is by far the most common date, but sometimes 1552 is found (inferred by some from the assertion that he started teaching at age 21 in 1573, see Pierre Bayle or 存档副本. [2007-02-12]. (原始内容存档于2007-04-16).). Thus, some sources will say "ca. 1550", or "1550 or 1552".