The Lauterpacht Centre for International Law (LCIL), University of Cambridge hosts a regular Friday lunchtime lecture series on key areas of International Law. Previous subjects have included UN peacekeeping operations, the advisory jurisdiction of the International Court of Justice, the crime of aggression, whaling, children and military tribunals, and theories and practices for proving individual responsibility criminal responsibility for genocide and crimes against humanity. This lecture, entitled 'A time map for international law' was delivered at the Lauterpacht Centre on Friday 24 November by Dr Deborah Whitehall, lecturer at the University of Sydney Law School.