It was under Peter the Great that Gorodskoy Island (today Petrogradsky Island) emerged as St. Petersburg's commercial and administrative center.
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Development of what would become the Petrogradsky District began in May 1703 when Peter the Great began construction of the Peter and Paul fortress on Zayachy Island.
It is the administrative center of the Petrogradsky District and hosts a number of universities and research centers, as well as cultural,
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