April 12th, 1819

The International Day of Human Space Flight commemorates the historic journey of Yuri Gagarin, the first human to orbit the Earth in space on April 12, 1961. This day celebrates the achievements of human space exploration, highlighting the contributions of astronauts and the international cooperation in space missions. Events include educational programs, exhibitions, and space-related activities that inspire people to learn about space exploration and its impact on scientific discovery. The day also honors the spirit of exploration and the quest for knowledge that drives humanity to reach new frontiers beyond Earth.

Orthodox Palm Sunday, celebrated by Eastern Orthodox Christians, marks the triumphant entry of Jesus Christ into Jerusalem. The day is also known as "Entry into Jerusalem Sunday" and is observed on the Sunday before Easter. Orthodox Christians commemorate the event by carrying palm branches and participating in processions, symbolizing the crowd's welcome of Jesus with palm leaves. Church services include special prayers, hymns, and the blessing of palm branches. Orthodox Palm Sunday serves as a joyous and festive prelude to Holy Week, as the faithful reflect on the significance of Jesus' entry into Jerusalem and anticipate the events leading to his crucifixion and resurrection.