 Complete the following phrase:  In 1956, Niemeyer was invited by Brazils new president, Juscelino Kubitschek, to design the civic buildings for Brazils new capital, which was to be built in the centre of the country, far from any existing cities. His designs for the National Congress of Brazil, the Cathedral of Brasília, the Palácio da Alvorada, the Palácio do Planalto, and the Supreme Federal Court, all designed by 1960, were experimental and linked by common design elements. This work led to his appointment as inaugural head of architecture at the University of Brasília, as well as honorary membership of the American Institute of Architects. Due to his largely left-wing ideology, and involvement with the Brazilian Communist Party PCB, Niemeyer left the country after the 