The Charter of Kulin Ban (issued on 29. August 1189).

The Charter of Kulin Ban, a historical document from Bosnia, serves as an example of the importance of good neighborliness. This document outlines an agreement between (medieval mighty kingdom of) Bosnia and the Republic of Dubrovnik (independent state of republican type) which established the terms of their economic and political relationship, freedoms of movement and liberties including trade agreements and diplomatic protocols. Kulin Ban Charter is an early example of an international accord between two sovereign states. As such, it is considered as one of the earliest examples of written documents of international law in the post-Antique Europe. It is also often cited as an example of the country's long history of multiculturalism and tolerance. The principles of the Kulin Ban charter; sovereign equality among states, non-interference, right to international respect, principle of pacific conduct, freedoms and liberties (limited but for that time revolutionary), religious tolerance, and protection of property rights are similar to those upheld in the UN Charter and further strengthened by the subsequent Universal Charter on Human Rights of 1948. That makes Kulin Ban’s still relevant today, as one of the indispensable building blocks of the international order that will finally emerge, but only after the grossest violation of all above principles that brought the World War II.