Unknown

Where Unknown comes from

Wiktionary's etymology listing comes up empty for Unknown.

Unknown through the years
  1. 1880
    First SSA year
    Already #909 among boys, with 5 babies in the first year on record.
  2. 1954
    Peak, #308
    548 babies named Unknown, the most in any year.
  3. 1958
    The fade
    The first year with half the peak's births, down to #479.
  4. 2025
    Mostly girls from here
    Until now more boys than girls got the name. From this year on, more girls have.
In the dictionary

Wiktionary has no entry for this spelling.

Namesakes

No widely recognized namesakes for Unknown in Wikidata.

Sources: the origin note and dictionary entry are quoted from Wiktionary (CC BY-SA 4.0); the namesakes come from Wikidata (CC0); the milestones are worked out from the SSA record.