I want to know the answer to the following question:
What was formed on the 1st October 2007?
All the background I'm provided with is that "Imperial College Healthcare NHS Trust was formed on 1 October 2007 by the merger of Hammersmith Hospitals NHS Trust (Charing Cross Hospital, Hammersmith Hospital and Queen Charlotte's and Chelsea Hospital) and St Mary's NHS Trust (St. Mary's Hospital and Western Eye Hospital) with Imperial College London Faculty of Medicine.". Is that enough to answer the question?
Answer: yes