How did kublai khan encourage trade

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By resorting and extending the Grand Canal and building a paved highway alongside it; by insuring the safety of trade routes; by inviting foreign merchants to China.

Explanation:

wood carving remains today the primary sculptural art form of the sub saharan continent. african art history shows the earliest wooden sculptures from the 17th c are attributed to the kuba, central zaire but the earliest surviving sub-saharan sculpture is a zoomorphic head found in 1928 in central angola.

i hope this .