"Fortsätt" , en kortfattad historia av Robert Silverberg , först publicerad i Förvånande Science Fiction , maj 1956 , tillgänglig på Internetarkiv . Kanske kan en av dessa omslag ringa en klocka.
Sammanfattning från Majipoor.com :
This story presents a version of extreme longevity that's a bit different than most (Heinlein's Lazarus Long and so on). Gaius Titus Menenius was born a Roman citizen, but realized early in his life he was not like other people. He grew up very slowly, less than a tenth the speed of normal people. So it isn't until the 1950s that he becomes sexually mature and able to father children. Now all he needs is an appropriate mate.
Berättelsens slut:
"Mary?"
"What . . . Titus?"
"How old did you say you were? When were you born?" he asked.
She thought for a moment. "In 1597," she said. "I'm nearly four hundred."
He nodded, dumb with growing frustration. Only four hundred? That meant—that meant she was now the equivalent of a three-year-old child!
"When can we get married?" she repeated.
"There's no hurry," Titus said dully, letting her hand drop. "We have eleven hundred years."