How is the right of freedom of speech protected

Which four of these developments were made under mongol rule during the pax mongolica? the extension of the grand canal in china the spread of christianity the spread of weapons that used gun powder the invention of new medicines the establishment of a postal system the invention of geometric models of lunar motion

What was martin luther king, jr., referencing in the passage that brought him to lead a protest in birmingham?

Which best describes colonial shipping activity in the port of charles town