site.btaToday's Observances: April 11
![Today's Observances: April 11](/upload/45853/calendar+image.jpg?l=1000)
![Today's Observances: April 11](/upload/45853/calendar+image.jpg?l=1000&original=70facc9250574c99d821e0981af12698e1150f89)
The world:
International Day of Fascist Concentration Camps Prisoners Liberation;
World Parkinson's Day.
On this date in Bulgarian history:
1879: Postal communications launched. Prince Alexander Dondukov-Korsakov endorses Interim Postal Service
/MY/
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