Im Jahr 1953 gab es in der DDR einen Aufstand, an den lange Zeit in der Bundesrepublik Deutschland ein Feiertag erinnerte. Wann war das?

Why this is the correct answer

On June 17, 1953, workers across East Germany staged strikes and protests against Soviet-imposed work quota increases and deteriorating living conditions. Soviet troops and GDR police violently suppressed the uprising, killing dozens of people. West Germany designated June 17 as a national public holiday called 'Day of German Unity' to commemorate the uprising and express solidarity with East Germans, a status it retained until October 3 replaced it after actual reunification.