What is the commonly known name of the charter written by a Swiss-French political activist in 1815?
Charter of 1815:  More correctly known as the "Additional Act to the Constitutions of the Empire" the document extensively amended (in fact virtually replacing) the previous Napoleonic Constitutions (Constitution of the Year VIII, Constitution of the Year X and Constitution of the Year XII). Benjamin Constant: Henri-Benjamin Constant de Rebecque (] ; 25 October 1767 – 8 December 1830), or simply Benjamin Constant, was a Swiss-French political activist and writer on politics and religion.
i don't know