Chris Harrison marked this weekend's 15th anniversary of "The Bachelor" by sharing on Instagram a throwback photo featuring himself and the first ever Bachelor Alex Michel.

"15 years ago it all began. At the time this young man couldn't comprehend how life was about to change," Harrison, who has hosted the dating series since its inception, wrote alongside a photo of himself standing next to Michel.

"Along the way I've worked with some amazing people and made some incredible friends. I've seen every corner of this beautiful planet, more than a few tears, plenty of drama but also a lot of love. Thank you hardly seems like enough to those I've worked for and with to make this show, but Thank You!" he continued.

"Many have come and gone since our first season with Alex Michel and I appreciate them all for their part in all this. The first 15 years have been an incredible ride and thanks to you #BachelorNation the future only looks bigger, brighter and more dramatic than ever!"

Michel chose Amanda Marsh, whom he dated for a year, before breaking up on the inaugural season of "The Bachelor" which aired in 2002.

Runner-up Trista Rehn then went on to become the first-ever Bachelorette and married winner Ryan Sutter in December 2003.

The couple are parents to two children, Maxwell 9, and Blakesley, 7.

The first season of "The Bachelor" is currently available for free streaming on