MOSCOW (AP).- Russia will celebrate the 450th anniversary of St. Basil’s Cathedral by opening an exhibition dedicated to the so-called “holy fool” who gave his name to the soaring structure of bright-hued onion domes that is a quintessential image of Russia. The eccentrically devout St. Basil wore no clothes even during the harsh Russian winters and was one of the very few Muscovites who dared to lambast tyrannical Czar Ivan the Terrible. Ivan, whose gory purges claimed tens of thousands of lives, feared St. Basil as “a seer of people’s hearts and minds,” according to one chronicle. He personally carried St. Basil’s coffin to a grave right outside the Kremlin. The cathedral, constructed to commemorate Ivan’s victory over Mongol rulers, was built on the burial site. Deputy