The problems and the history of contacts between distant continents in bygone ages and long before the age of fast and easy travel, have always fascinated both professional scholars and the interested public. Was ancient history really nothing but the history of co-existing and isolated geographic, cultural and political “islands?” Already at school we learned too much about migrations of peoples, economic contacts, influences on art styles, conquests, and the rise, expansion and fall of empires to believe that. The (highly improbable) theory that certain archaeological finds in America suggest, or even prove, Mediterranean influence (e.g., the arrival of Phoenician ships), or the alleged Viking discovery of America centuries before Columbus, or Thor Heyerdahl's adventurous journey to prove South American influence on remote Pacific islands did not fail to cause widespread interest and even excitement (although many scholars still feel that Heyerdahl's epic adventure, thrilling as it is, failed to prove what it set out to prove). The island of Madagascar is pretty close to the African continent, but its language exhibits more points of contact with Polynesian than with African tongues. And the blow-bellows used by Malagache smiths are similar to those used in Malaysia and unlike those known to African metalworkers. Clearly the Polynesians, those great ancient mariners, sailed further than originally seemed likely. Musicologists studying the cantillation of the Hebrew Bible in the liturgy of the ancient Jewish communities on the Malabar coast in India discovered to their surprise that it was similar to the cantillation not of the Babylonian but of the Yemenite Jews! This surprise was, of course, no surprise to those who knew anything about trade-winds and shipping routes between South Arabia and the Indian coast. Historians of religion, even more than general historians, studying the spread and expansion of religious ideas and movements have realised long ago that the beginning of all wisdom is a basic knowledge of economic geography.
