Shah Waliullah was an 18th century Islamic scholar from India who developed a theory of societal evolution and reform. He believed societies evolve through 6 stages from nomadic groups to universal global communities. He advocated for social justice and removing inequalities to stabilize society. Shah Waliullah analyzed many social issues and institutions including wealth distribution, taxation, family structure, and vocations. He emphasized rule of law and strong leadership to guide social development according to Islamic principles.