Here is a simple way to import an old course to a new course shell.
1. Go to the new course.
2. Click the settings from the course menu.
4. Select "Copy a Canvas Course"
5. Select old course
7. You can adjust events and due dates.
8. Click import and wait.
**Be sure to check assignments and quizzes for any date changes that need to be made.
More info can be found in the Canvas Guides.