The Calendar in the left side menu has been expanded. Clicking it will still show all of the upcoming events, but now will also show sub-menu choices. Clicking one of those will show only those events on a calendar. So, for example, ASRDA related events such as delegates meetings, quarterly dance, etc. can ben viewed without everything else.
While Lessons is one of the choices, that subject is important enough that it will soon have its own Topics menu as well. News about lessons and the lessons calendar will be included there.