Wikipedia:WikiCup/History/2024/Submissions/Piotrus

DYK: 5 or 10 points

 * 1) Artificial planet Template:Did you know nominations/Artificial planet
 * 2) Children's book illustration Template:Did you know nominations/Children's book illustration
 * 3) Tadeusz Gebethner Template:Did you know nominations/Tadeusz Gebethner
 * 4) Counterweight (novel) Template:Did you know nominations/Counterweight (novel)