Our world is changing so fast, there are so many inventions each year.  These inventions are changing the way we live and filling our world with wonderful innovations to do and learn.  With these changes, we are also experiencing complexity. How can we afford this new invention, is it compatible with all the other inventions? How does this new creation affect our environment? It is your job to learn about the inventions of the past, and how they will affect our future.  (Giving students different years to look at will broaden the scope of the project. Choose a starting time and give each student a different time period to look at - the track will have students choose 5 events in their time period.  They will then be asked to make a timeline of their 5 events.  Each student's time line will then be a piece of a class timeline.)