Marco Polo Bridge Incident happened in 1937.

The Marco Polo Bridge incident between Japanese and Chinese troops, led to fighting between the two countries that was the prelude to the Pacific side of World War II. Japan had continued to try and expand into Chinese territory, and Chinese communists and Nationalists formed a united front against farther aggression.

Yes, its named after the famous explorer

No Marco Polo did not invent the game Marco Polo.

Marco Polo