<P> Gunnell argues that since the 1950s the concept of system was the most important theoretical concept used by American political scientists . The idea appeared in sociology and other social sciences but David Easton specified how it could be best applied to behavioral research on politics . </P> <P> Canadian universities until the 1950s were led by British trained scholars for whom political science was not a high priority . Canadians favoured the study of political economy . After 1950 younger scholars increasingly took American PhDs and Canadian departments promoted behavioralism and quantification . </P> <P> Political science operates on a smaller scale in European universities compared to American ones . Traditionally political studies were handled by law professors or professors of philosophy . American impulses toward behavioralism have made the European Consortium for Political Research (ECPR) is a unifying force . It sponsors several scholarly journals including European Political Science (EPS) (since 2001), European Journal of Political Research (EJPR) and European Political Science Review (EPSR). </P> <P> In ancient India, the antecedents of politics can be traced back to the Rig - Veda, Samhitas, Brahmanas, the Mahabharata and Buddhist Pali Canon . Chanakya (c. 350--275 BC) was a political thinker in Takshashila . Chanakya wrote the Arthashastra, a treatise on political thought, economics and social order . It discusses monetary and fiscal policies, welfare, international relations, and war strategies in detail, among other topics . The Manusmriti, dated to about two centuries after the time of Chanakya is another important Indian political treatise . </P>

Trace the historical development of the displine of political science in nigeria