Really, lots of different connections, both overland and by sea that tracked goods back and forth between major population centers in China and Roman Empire
Main Silk Road route (Case, Wikimedia Commons, 2010)
Major oceanic Silk Road routes (Wikimedia Commons)
The Grand Canal (Lincoln, An urban history of China, 2021, p. 51)
Map of Zheng He’s voyages (Wikimedia Commons)
Location records from European ship logs in the CLIWOC database (Visual Capitalist, 2023)
Mercator world map, 1569 (Wikimedia Commons)
“Cerro Rico and the Imperial Municipality of Potosí” (Miguel de Barrio, 1758)
Estimated price changes for basic consumption goods in early modern Toledo (Agudo, Social Science History, 2019)
18th Century map of Cartegena (Pinzon & Gardella, Planning Perspectives, 2023)
Inset map of Acapulco port, 1740 (David Rumsey Map Collection).
“Between late October and late April each year, ships from Japan brought cargoes of finely woven silks, decorated screens rendered in gilt, folding fans and lacquerware, finely wrought armor, lances and swords, delicately worked boxes and trinkets, teakettles and wooden bathtubs, skylarks, quality wheat flour, salted meats, tuna, and fresh pears. From Malacca, Bengal, and Cochin, Portuguese ships arrived laden with treasures—spices, precious jewels and gemstones, a diversity of textiles from thin cotton muslins and gauzes to soft wools, Turkish and Persian tapestries and carpets, and a rich assortment of fruit preserves, almonds, and wines. Filipinos sought out the boats from Siam, Cambodia, and Borneo, which carried benzoin, camphor, rhinoceros products (horn, hide, hoof, and teeth), intricately woven palm mats, sago, black-glazed jars, and slaves. The majority of ships, of course, were from China. Usually making two visits each year that were timed to take advantage of the monsoon winds, Chinese ships arrived in squadrons of thirty to forty, packed with exquisite things and rarities: luxurious fabrics—in addition to the softest silks were brocades, taffeta, damasks, satins, and velvets; musk and ivory; pearls, rubies, and sapphires; fresh and preserved oranges, peaches, pears, and chestnuts; copper and cast-iron utensils; cargoes of live animals, including different types of fowl, horses, mules, donkeys, buffaloes, and birds with the ability to talk and perform tricks.”1
Fortified areas in Malacca (GAHTC).
Batavia in 1681 (GAHTC).
Region around Rio de Janiero (GAHTC).
Rio de Janiero map (GAHTC).
Tax revenue scaling in Tudor England, 1524/1525 (Cesaretti, et al., Historical Methods, 2020)
European city wages (Lopezlosa & Piquero Zarauz, European Review of Economic History, 2020)
Urbanization in Europe and China
Urbanization in Europe and Middle East/North Africa