This article consists of a series of short essays dedicated to a certain chapter of the 'popular' socioeconomic history (with a particular focus on the institutional development problems) of the former East Prussia from the Antiquity to present days. The authors tackle the issues of the economic history of amber, the role of the Hanse in the development of medieval trade, the QWERTY-effects in rail rack standards, and the peculiarities of the development of the Kaliningrad region in the post-Soviet period.
The article describes the evolution of the accounting knowledge from the simple registration technique to economic and social institution, in medieval Italy. It is shown that the institutionalization of accounting was completed to the XIV century, when it became a system of codified technical standards, scholar discipline and professional field. Examined the interrelations of this process with a business environment, political, social, economic and cultural factors of Italy by the XII-XVI centuries.