The Saint Petersburg Botanical Garden, also known as the Botanic Gardens of the Komarov Botanical Institute, is the oldest botanical garden in Russia. It consists of outdoor and indoor collections situated on Aptekarsky Island in Saint Petersburg and belongs to the Komarov Botanical Institute of the Russian Academy of Sciences.
The garden was founded by Peter the Great in 1714 as a herb garden in order to grow medicinal plants and re-established as a botanical institution under the name Imperial Botanical Garden in 1823. Ivan Lepyokhin was in charge of the botanical garden from 1774 until 1802. Beginning in 1855, Eduard August von Regel was associated with the garden, first as Scientific Director and then as Director General (1875-1892). Regel had a particular fascination with the genus Allium, overseeing collections of these plants in the Russian Far East and writing about them in two monographs. More than 60 of the alliums he identified bear his name, e.g., A. giganteum Regel and A. rosenbahianum Regel. Many alliums can be viewed in the Northern Yard of the garden.
In 1930 the garden became subordinate to the Academy of Sciences of the Soviet Union and in 1931 was merged with the Botanical Museum into the Botanical Institute.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.