What were the effects of mongol leaders welcoming traders and other foreigners?

Mongols welcoming traders and other foriegners was beneficial to both East and West. Trade flourished between East and West along the silk road. Goods traded between Europe and the East along with inventions and learning. Many new items such as silk and spices went to Europe. Technology went to Asia. The Mongols habit of welcoming traders finally linked East and West to a new level.

this isn't a question and if you're going to list things be kind and use commas.

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.