World's 1st IVF baby wishes 1st test-tube boy on 40th birthday

Louise Brown, a 40-year-old English woman known for being the world's first human born via in vitro fertilisation (IVF) took to Twitter on Monday to wish the first test-tube boy, Alastair MacDonald, on his 40th birthday. Both were conceived at UK's Bourn Hall Fertility Clinic. Louise, usually dubbed the world's first test-tube baby, was actually conceived in a petri dish.