Liverpool: the first wet dock, two liver birds and Titanic's home port

Liverpool grew from seven streets on the Mersey into one of Britain's great ports, and its story mixes engineering firsts, legends and some of the gravest pages of British history. This quiz invites you to test what you know about the city in 20 questions with pictures.

What was so new about the dock that Thomas Steers opened in 1715, and what does the city's name actually mean? Why was a port founded on the Mersey in 1207? Which bird was carved on the medieval town seal, and what is said to happen if the two copper birds at the Pier Head ever take wing? Why were the great clocks there named after a George?

What became of the young architect of St George's Hall, what was missing from the Albert Dock's warehouses, and which engine struck an MP on the opening day of the railway to Manchester? What did Liverpudlians call their railway on stilts, and which name did the most famous liner of 1912 carry on her stern?

How many of the city's people were Irish-born by 1851, what share of Britain's slave voyages sailed from the Mersey before 1807, and what did the young United States open here in 1790? What did a young astronomer from Toxteth see in 1639, how did a washerwoman fight cholera, which campaign was run from the city during the war, who designed the Town Hall, and where do the words 'Scouse' and Chinatown's oldest roots come from?

The pictures are old photographs, a colour photochrom, engravings, aquatints, maps and paintings, all in the public domain.