1653 North America:
>The two travellers learned of the great trade fairs in the Mandan villages along the upper Missouri River. People from thousands of kilometres away, from all directions of the compass, congregated to haggle and barter for goods such as northern furs, pipestone, buffalo robes, grease, ochre, obsidian, eagle feathers, porcupine quills, fine leather, pottery, dried corn, wild rice, tobacco, dried herbs, preserved fish, precious stones, decorative seeds, coloured embroidery—and of course to share news of the land.
https://www.readersdigest.ca/culture/the-incredible-origins-...
* When Asia Was the World
* Religions of the Silk Road: Premodern Patterns of Globalization
No one thinks Marco Polo "discovered the east", but he was one of the first medieval westerners to travel throughout some parts of east and, most importantly, write about it.
For instance here's a Chinese description of the Roman empire from the 3rd century: