The Magna Carta
Fair representation takes time. For Canada, that process started with the Magna Carta in 1215.
The Magna Carta established a council of 25 barons to see King John kept to the clauses like protection from illegal imprisonment, access to swift justice, parliamentary assent for taxation, and scutage limitations.
King John denounced it as "not only shameful and demeaning but also illegal and unjust".