History Daily is a Windows Phone app designed a lot like those word-a-day calendars. Instead of offering up a new word, History Daily provides you with a historical event that took place on that particular day.
History Daily doesn't have many bells and whistles, more of a bare knuckles version of the old History Channel app. Still, History Daily is well presented and can give you a few historical facts to impress others with or simply expand your knowledge of things.
History Daily has a simple and direct layout with a page detailing the historical event for today and an archive page that displays the past six days worth of factoids.
The Today view offers a snippet of information on the event and if you tap "more" you can...well...read more on the event. If you want even more information, you can pull up the listing over on Wikipedia by tapping the Explorer Button at the bottom of the screen.
History Daily has toast notifications on new events and lockscreen support to display the day's history lesson on your Windows Phone lockscreen.
If you're looking for a source on historical facts, History Daily isn't a bad option to consider. History Daily is a free app for your Windows Phone 8 and 7.x device that you can find here in the Windows Phone Store.