On the occasion of the 75th anniversary of the promulgation of the Basic Law, a state act will take place on Thursday (12:00) in Berlin's government district. Federal President Frank-Walter Steinmeier will give the central speech and the Berliner Philharmoniker will play several pieces. The state act is preceded in the morning (10.00 a.m.) by an ecumenical service with interreligious participation in St. Mary's Church in Berlin-Mitte. From Frida…