Tomis was a Greek colony on the Black Sea's shore, founded around 500 BC for commercial exchanges with local Dacian populations. Today, this city is called Constanta[?] and it is located in Romania.
... in the world by volume, the Parana[?] with its impressive Iguaçu[?] falls, the Rio Negro, São Francisco[?], Xingu, Madeira and the Tapajós[?] rivers.
Situated along th ...