Regional History Museum - Plovdiv was established in 1951 as a research and cultural organization for investigation, study, preservation and display of cultural assets from the past of the city of Plovdiv and its region in the period 15-20th century. The Museum holdings keep more than 60,000 exhibits, amongst them unique collections of cold steel and firearms, orders and medals, armament, personal belongings, printed publications, apparel and items from towns everyday life, photos and documents. The History Museum in Plovdiv manages four expositions: The Bulgarian National Revival, Book Publishing in Bulgaria in the second half of 19th and the beginning of 20th century, The Unification of Bulgaria of 1885 and the Museum Centre of Modern History.
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A Kyohina empress doll part of The Soul of the Japanese Doll exposition in Museum center of contemporary history at Angel Bukoreshtliev street in Plovdiv.

Ever since ancient times dolls have been a part of the culture of Japan. The outer appearance of dolls has constantly changed, but the Japanese love of dolls has remained steadfast. There are two main doll festivals. The first is The day of the girls which is celebrated annually on the 3rd of March. The second is The day of the boys, which is celebrated annually on the 5th of May. Dolls are not only considered objects of decoration or entertainment, but living creatures as well.

This exhibition has been realized thanks to the partnership between Regional Museum of history, Plovdiv and Japan International Cooperation Agency (JICA), which dated from 1999. In 2005 the Japanese volunteer Yuko Nakajima together with her friends from the prefecture of Saitama organized the collection of dolls, and JICA provided the necessary funds for their transportation to Bulgaria.