This week COVID-19 vaccinations began in Great Britain. Margaret Keenan, 90, became the first person to receive the new vaccine from Pfizer-BioNTech at Guy’s Hospital in London. These are just a handful of photos taken during this unprecedented event.

The first man to receive a vaccine in the UK was an Englishman named William Shakespeare.

A woman with the first of two COVID-19 vaccine shots administered at Guy’s Hospital in London. Victoria Jones/Pool via AP

The deputy charge nurse Katie McIntosh waiting to administer the first of two vaccine shots to workers at the Western General Hospital in Edinburgh, Scotland, on Tuesday. Andrew Milligan – Pool / Getty Images

Syringes in a tray at the Western General Hospital in Edinburgh containing the vaccine developed by Pfizer and BioNTech. Andrew Milligan – Pool / Getty Images

Nurse Katie McIntosh administering an injection of Pfizer and BioNTech’s COVID-19 vaccine to the clinical nurse manager Fiona Churchill at the Western General Hospital. Andrew Milligan/Pool via AP

A box of vials of Pfizer and BioNTech’s COVID-19 vaccine concentrate being transported from storage ready for use at Guy’s Hospital in London. Victoria Jones/Pool via Reuters

Josephine Faleye, 80, with senior nurse Dilhani Somaweera at the Royal Free Hospital in London. Jack Hill – Pool / Getty Images