 Complete the following phrase:  Warsaws development, however, was accompanied by an intensive assault on Polish national identity. Russian authorities closed Polish schools and built more and more Orthodox churches. These acts were strongly opposed. On 27 February 1861, Russian troops fired on a Warsaw crowd that was protesting Russian rule. Five people were killed. On 22 January 1863 a new uprising broke out. The Underground Polish National Government resided in Warsaw during January Uprising in 18634. However, this uprising was mainly in the character of guerilla, therefore Warsaw did not distinguish itself in it. But, as a penalty, President Kalikst Witkowski, the Russian general and predecessor of Sokrates Starynkiewicz, constantly imposed tributes on Warsaw. After Cossacks and police fired on demonstrators in January 1905 