Which leader is most closely associated with the accomplish ment

What would lead a historian to consider two events to have a relationship of correlation rather than causation

In 2001 mexico imposed a 20% tax on all soft drinks not made from sugar cane high fractals corn sit-up which is made from corn, is often used in place of cane sugar to manufacture soft drinks. which nation would most likely be impacted by mexico’s policy change?

•the impact of enlightenment ideals on the development of economic, political, and religious structures in the western world