The University of Melbourne was established in 1853, consistently ranked among the leading universities in the world, with international rankings of world universities placing it as number 1 in Australia and number 32 in the world (Times Higher Education World University Rankings 2017-2018). It makes distinctive contributions to society in research, learning and teaching and engagement. With more than 50000 student enrolment, it comprises 10 academic units and associated with numerous institutes and research centres, including the Walter and Eliza Hall Institute of Medical Research, Florey Institute of Neuroscience and Mental Health, the Melbourne Institute of Applied Economic and Social Research and the Grattan Institute. Several Nobel laureates have taught, studied and researched at the University of Melbourne.