Hassan II of Morocco because of Moroccan claims on the country (see Great Morocco). Economically, Hassan II adopted a market-based economy, where agriculture, tourism, and phosphates mining industries played a major role. The period from the 1960s to the late 1980s was labelled as the "years of lead" and saw thousands of dissidents jailed, killed, exiled or forcibly disappeared. King Hassan II had extended many parliamentary functions by the early 1990s and released hundreds of political prisoners in 1991, and allowed the Alternance, where the opposition assumed power, for the first time in the Arab World. He set up a Royal Council for Human
ASCEND the models) and computational engineers (people writing the solver code) can work separately in developing ASCEND. Together with a number of other early modelling tools, its architecture helped to inspire newer languages such as Modelica. It was recognised for its flexible use of variables and parameters, which it always treats as solvable, if desired The software remains as an active open-source software project, and has been part of the Google Summer of Code programme in 2009, 2010, 2011, 2012, 2013 (under the Python Software Foundation) and has been accepted for the 2015 programme as well. ASCEND ASCEND is an open