Dedicated to the 100th Anniversary of the Establishment of the Ukrainian Navy`. At the beginning of 1918, the Central Rada adopted a number of important naval laws, which at that time had declarative character, including one of the most important ones - the "Provisional Law on the Navy". On April 29, 1918, Admiral M. Sablin, commander of the Black Sea Fleet, took into account the mood of the majority of Ukrainian sailors, officially proclaimed the Black Sea Fleet in Sevastopol and the Crimea as a UNR fleet and ordered the Ukrainian flag to be raised. This day became outstanding for the Ukrainian state fleet and the holiday of the Ukrainian sea, the day when the whole Ukrainian fleet showed its affiliation with the Motherland.