Perpetual Calendar is the only application on GooglePlay that will help know these things:

You know what day of the week came Fry (Futurama's serie) the year 3000?
Do you know what day Nikola Tesla was born?

I also know what day Christopher Columbus arrived in America and many more.
Surprise your friends telling them what day they were born.

You can even surprise your grandparents reminding them what day they were born.