12 May

12 May was the first day of the Krynoid growth season. (PROSE: Time Traveller's Diary)

In 1999, Adelaide Brooke, commander of Bowie Base One, the first human base on Mars, was born in Finchley. (TV: The Waters of Mars)

In 1898, actor Edmund Trevithick was born. (PROSE: Nightshade)