April 20th, 1840

Patriots' Day is a civic holiday observed in certain U.S. states, primarily Massachusetts and Maine, to commemorate the Battles of Lexington and Concord, which marked the beginning of the American Revolutionary War in 1775. The day typically involves reenactments, parades, and ceremonies to honor the brave patriots who fought for American independence. In Massachusetts, the Boston Marathon is also held annually on Patriots' Day. Patriots' Day is a time for reflection on the sacrifices made by early American colonists and an opportunity to celebrate the spirit of freedom and independence that played a pivotal role in shaping the nation's history.

Chinese Language Day is a day dedicated to promoting linguistic and cultural diversity by celebrating the Chinese language, one of the six official languages of the United Nations. This day recognizes the rich history, traditions, and global significance of the Chinese language. Events include language-related activities, cultural performances, and educational programs that highlight the beauty and diversity of the Chinese language. Chinese Language Day serves as an opportunity to foster cross-cultural understanding, encourage language learning, and appreciate the contributions of Chinese culture to the global community.

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.