5. Which city on the Black Sea was attacked by the Vikings?

The city "Constantinople" was attacked by vikings on the Black Sea.

"In 941 the Rus launched a disastrous attack on Constantinople. With the Byzantine army and navy once again gone from the city, a fleet of 1,000 ships descended upon Constantinople only to be done in by 15 old dromons fitted with Greek Fire projectors that set the Viking ships ablaze."

you so !

buildings sir and respect