What is an isthmus? It is a relatively narrow strip of land (with water on both sides) connecting two larger land areas. Why Panama? Because it is irresistible. It was irresistible for everyone, who looked at the map of Americas for 400 years. At first, they search for a open waterway. There was none. Then they searched a passage to the North and to the South of the continent. On September 6, 1522 a news reached Spain that there is a water passage to the South. Only one ship with 18 men returned. They started 3 year earlier with 5 ships and a crew of 237. Ice and cold securely blocked…