How was Brazil's independence unique?

Answer 1

On September 7, was D. Pedro back from a trip she made to the city of Santos, where, in Ipiranga, received a letter that came from Portugal. The messenger arrived from Rio de Janeiro and brought too, Bonifacio and José Carias Princess Leopoldina. From Lisbon he had orders to overthrow the ministry and prosecute the ministers who had convened the constituent. Plus, the new ministers would be appointed from Lisbon.

It was then, D. Peter certainly had nothing to do but definitely proclaim independence, freed the Brazil of the weak ties that have bound him to Portugal.