Each day around 10:20 am and 2:20 pm we step into a time machine and take a look back. Who was born? What was going on in the world? What happened in music?

Today on May 17th...

In 1986-Actor Tahj Mowry, little brother to Tia and Tamera Mowery who featured on their hit show "Sister, Sister" as well as "Full House" and more recently, "Baby Daddy."

Disney / Alberto E. Rodriguez, Getty Images

In 2004-Massachusetts became the first state to allow legal same-sex marriages.

In 1991-In music history, the iconic "Summertime" by DJ Jazzy Jeff and the Fresh Prince was released.

Kevin Winter (Getty)

And that's what happened today in history.