1936: "Finality Unlimited" , uma novela de Donald Wandrei , publicado pela primeira vez em Histórias Astounding , setembro de 1936 , disponível em Arquivo da Internet . A história é definida (inicialmente) em 28 de agosto de 2005:
Despite the heat, an air of excitement prevailed on the streets and the hanging-garden cafes. The Second Expedition to Mercury should land at any time now with news of what happened to the First Expedition, still missing from its maiden voyage years ago in 1991.
The arteries and towers of Manhattan had begun to assume the aspect of a dream city, as the products of science came into wider use. The race was markedly happier, healthier, taller than a century before; the atmosphere filtered of dirt and gases; the harbors clean again; life a richer and broader experience. Each individual carried an identification tag, and a pocket radiophone that permitted conversation with any one anywhere on the globe.
[. . . .]
Stanley King had dressed and begun packing when he heard the signal of his pocket radiophone. He hesitated about answering it. He didn't want to get tangled with anything that might delay his departure. Still, it might be a call of importance, and finally he answered with a noncommittal, "Yes?"
1930: "Sr. Murphy de Nova York" , um conto de Thomas McMorrow ; publicado pela primeira vez na edição de 22 de março de 1930 do The Saturday Evening Post ; também a resposta para a questão do ID da história História sobre deixar o banho corrida / arranha-céu colapso .
"Now, gentlemen, please," breathed Mr. Bligh. "Do remember that I'm a thousand miles from home and haven't had any lunch yet. Well, I shall have to call up." He took out his pocketell. "Are you there? Billy calling . . . Hello, Molly! I just called you to say that I can't possibly get home— What's that, sweetheart? . . . Oh, no, no. . . . But I say that I am not! I am in New York in a conference. . . . Yes, business. . . . Why don't I— Now, Molly, how can you ask me to be so rude? . . . Oh, very well, my dear, in a moment." He turned to us, coloring, and said, "Will you permit?" We were married men ourselves; we smiled and got to our feet and bowed to his lady when she appeared; her eyes swept us vigilantly. "I'm sorry this had to happen, gentlemen," said Mr. Bligh, blanking her. "May we proceed now with our affair?"