The "Kalenderblatt" (literally, "calendar page") is provided by Deutsche Welle, the German equivalent of the USA's National Public Radio (NPR). Deutsche Welle is a byword for serious, high-quality journalism coupled with wit. Here you can read every day what happened on the current date in years past.
You will find short texts dealing with events or people you will have heard of, making it easier for you to expand your knowledge of German. You will probably be familiar with the historical milestone being talked about or with the famous personality whose birthday it is. This background knowledge will help you understand the words and idiomatic expressions used in the "Kalenderblatt" and so boost your motivation. Why not bookmark this page to get your daily language learning fix?