Hey there! I believe the answer is D. Hope im right and hope this helps :)
Answer:
the shot heard around the world, 1775
Explanation:
april 1775, british soldiers and minutemen battled at Lexington and Concord in Massachusetts. this is known as 'the shot heard around the world' that signaled the start of the Revolution.
Florence Nightingale the Lady with that lamp was a legend in her own lifetimes bd one of the most famous women In British history