Everything on the calendar

31,574 dates · 13 categories

History · Anniversaries

125th anniversary: The Marconi International Marine Communication Company specified CQD (audio...

Sun, January 7, 2029

in 2 yr

Source

In 1904, The Marconi International Marine Communication Company specified CQD (audio featured) as the distress signal to be used by its operators.

Also on Jan 7, 2029

Source, method and history
Source
Wikipedia
How we know
Wikipedia "On this day" selected anniversary, 125 years (1904 to 2029).
Recurs
annual
Feed
Subscribe to Anniversaries
Changes
  • 2026-09-25: added to 2029-01-07