The data doesn't have to be historical. It can be any information organized in this fashion. Each column is a dimension. The more dimensions the merrier. Here is Data about Solar System as an example.Date, Year, Month, Department, Category, Cost 2011-12-20, 2011, 12, Graphic Arts, Laptop, 2552.91 2012-06-18, 2012, 06, Marketing, iPhone, 659.91 …