+**Aa0** signifies a [primordial](/wiki/Primordial) point, often representing the very [first](/wiki/First) entry or a foundational state within a complex system. It can denote the absolute beginning of a sequence, a placeholder of origin before further development unfolds.
+## See also
+- [Genesis](/wiki/Genesis)
+- [Beginning](/wiki/Beginning)
+- [Root](/wiki/Root)