The home page is the first page that is shown when you log in. It shows a summary of information directly relevant for you. Basic profile information such as your user name, your current dojo and your nation are shown at the top. There's also some information on your statistics and a list of events that will take place on the day you log in.
On the very bottom is a list of recent events that have already taken place. The messages that describe these events are differently colored. Each color has a meaning: