The document discusses the concepts of constitution and constitutionalism. A constitution is defined as the supreme law of the land that establishes the system of government and protects individual rights. Constitutionalism refers to a system of government where power is limited by enforceable rules and checks on power to protect individual rights. Constitutionalism first developed in the US and French revolutions as a way to limit arbitrary government power. It has since evolved and spread to many countries as the concept of limited government with individual rights.