(Joseph Marzullo/Wenn.com)

Uncle unveiling.

In this week's Throwback Thursday poll, Soaps.com takes readers back to 1976 when Mike Horton learned that Mickey was not his father...

Today, Mike's sister, Jennifer, still lives in Salem, but back then, she wasn't born yet, and Mike had grown up believing he was the son of Mickey and Laura Horton. One day, while he was working at a local farm doing a repair underneath a truck, the jack collapsed and Mike was nearly killed. He was taken to the hospital, where he required surgery. His family rallied around. During this time, it came to light that Bill, Mickey's brother (and Mike's uncle), was actually Mike's biological father when Mike required a blood transfusion.

Mike remained oblivious about his paternity as his recovery progressed, but then suddenly learned the truth. Do you remember how Mike found out?

Read about ex-"DOOL's" Eric Winters in Witches of East End. Vote on who Y&R's Billy should be with.

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- Candace Young