For at least four Gahanna area youngsters Oct. 10 marked a momentous occasion: They celebrated their 10th birthdays.

For at least four Gahanna area youngsters Oct. 10 marked a momentous occasion: They celebrated their 10th birthdays.

They turned 10 on 10-10-10.

Amy Michalkiewicz said she realized several years ago that her daughter, Anna, would have this unique opportunity.

"The definition of a 'golden birthday' is the day when your age matches your birth date (i.e. turning 10 years old on the 10th of a month)," she said. "It is not like someone's 50th birthday. It's very special, unique, once in a lifetime."

The children also will celebrate what's called a "platinum birthday," when the day, month, and year of a birthday match.

"These children will have a once-in-a-lifetime birthday that most other people will never experience, including a 'golden' and 'platinum' birthday, when they turned 10 on 10-10-2010," Michalkie-wicz said.

The four youths are Drew Henry, son of Chris and Michele Henry of Blacklick; and Gahanna residents Logan Marks, son of Chris and Cara Marks; Anna Michalkiewicz, daughter of Rick and Amy Michalkiewicz; and Annabella Mitchell, daughter of Joe and Pam Mitchell.

Michalkiewicz and Mitchell are both fourth-grade students at Lincoln Elementary School, and Marks attends Jefferson Elementary School. Henry is a student in the Licking Heights Local School District.

The Michalkiewicz family plans to celebrate the day by swimming at the Westerville Athletic Club, followed by a slumber party.

"I like swimming and playing with my friends," Anna said. "I also like playing soccer and dancing."

Annabella is planning a party with her family at home, and Drew will celebrate with a "Minute to Win It" party, based on the popular game show.

Logan's family is celebrating with an "Amazing Race" party, based on the reality television show.

Michalkiewicz said the two girls are in the same class at Lincoln, and Logan is a friend who attends their church, Peace Lutheran Church in Gahanna. Cara Marks learned about Drew through his mother, Michele Henry, a teacher at Gahanna Middle School East.