New York Hospital

Mark Margolis, who played the sinister, wheelchair-bound cartel don Hector Salamanca in acclaimed TV shows "Breaking Bad" and "Better Call Saul," has died aged 83, his family said on Aug. 4.

Margolis died on Aug. 3 at a New York hospital following a short illness, with his wife and son at his bedside, according to a statement.

By George Gilson

Monday's Google Doodle paid tribute to Georgios Papanikolaou, the Greek medic and researcher who invented the smear test to detect early signs of cervical and uterine cancer.

The doodle, an illustration of him inspecting cells under a microscope, was available in 12 countries around the world.