ağa
A title given to military officials of high rank in the Ottoman Empire. From the 17th - and particularly the 18th- century the title bore also powerful Muslims who did not have any immediate military capacity.

Baltic Exchange House
The Baltic Exchange House was founded in 1823 as "Baltic Coffee House" and soon became the most important market for the purchase of cargoes in London. Its aim was to restrict the number of the traders and protect its 300 members from speculators. A significant number of its members were Greek.

Chian network
The network was comprised by the Greek merchants who were active commercialy in the Black Sea, in the Mediterranean and in Western Europe during the period 1830-1860. The most important merchants originated from the island of Chios and very often were connected with kinship ties. These merchants combined trade with shipping and their companies were characterised by discipline and cohesion. The most important families were those of Rodokanakis, Zizinias, Rallis, Dromokaitis, Petrokokkinos, Agelastos. The network's importance declined with the changes in Black Sea trade after the Crimean War (1853-1856), in connection with the technological changes in sea transport.