First Olympic gender testing

According to Official Guinness Records,

The first use of gender testing for athletes was in 1968 at the X Winter Olympics held in Grenoble, France.

For a complete list of 1968 records, please visit 1968 Guinness Records in France.

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• First double back somersault achieved on the flying return trapeze
• First radio broadcast of the Olympics
• First hand transplant operation
• First manned flight
• First newspaper to achieve a circulation of 1 million