Meanings :

1.  Trading – activity of buying and selling .

2.  Medieval – middle period .

3.  Commercial – intended to make a profit .

4.  Routes – paths .

5.  Facilities – place provided for a particular purpose .

6.  Perishable – things which will get spoilt later .

7.  Insatiable – unsatisfied .

8.  Investment – process of keeping money for profit .

9.  Navigate – direct the course of a ship .

10.  Expeditions – journey for a particular purpose .

11.  Exploration – to find out .

12.  Monarchs – kings .

13.  Imperialistic – practice of extending power .

14.  Exploitation – made full use of .