Marco Polo and Ibn Battuta are best known for
(1) exploring the Western Hemisphere
(2) leading religious movements
(3) opening trade between Africa and Japan
(4) providing extensive information about lands
and people
I think it was the answer number 4 - providing extensive information about lands and people. Marco Polo was one of the first Europeans to reach China, but what is important - he documented the whole journey in an extensive way.
