Who was the first ever streaker?

The first ever streaker is widely considered to be a man named Michael O'Brien, who ran naked across the field during a Rugby match in 1974 in England. While there were earlier instances of public nudity, O'Brien's act is often credited with popularizing the phenomenon of streaking at sporting events. His unexpected appearance garnered significant media attention and set the stage for streaking to become a cultural phenomenon in the following years.