12 May

12 May was a date.
==Holidays and observances==
12 May was the first day of the Krynoid growth season. (PROSE: Time Traveller's Diary)
==Births and deaths==
In 1898, actor Edmund Trevithick was born. (PROSE: Nightshade)
In 1999, Adelaide Brooke, commander of Bowie Base One, the first human base on Mars, was born in Finchley. (TV: The Waters of Mars)