The "On this day" Widget is an Android application that provides daily historical facts, events, holidays, and famous birthdays. This widget works in conjunction with the "On this day" application and makes use of the materials from The Free Encyclopedia. The content is available in accordance with CC BY-SA 3.0.

With this widget, you can learn about significant events that happened on the same day in history. The app provides a brief overview of each event and also offers links to more detailed information. The widget is easy to use and provides an excellent way to learn about historical events and famous people's birthdays.