 Complete the following phrase:  In 1845, wishing to complete his education, Maestri undertook a lengthy visit to Paris and London. He met up with Giuseppe Mazzini, who had been exiled in London, living in conditions of some material hardship, since 1837, following the failure of uprisings against Austrian hegemony earlier in the 1830s. Mazzini became a prodigious and inspiring author during his time in England, and by the time Maestri met him in London he was an iconic figure among young Italian men committed to the causes of what was known as and impatient for 