June 23

Grand Duke's Official Birthday is a public holiday in Luxembourg observed on June 23 each year. Established to celebrate the sovereign's birthday, regardless of the actual birth date of the reigning Grand Duke. The day features military parades, concerts, and fireworks in the capital city of Luxembourg City and other towns. Flag displays and public gatherings allow citizens to pay tribute to the Grand Ducal family and national heritage. Local markets and festivals offer traditional foods and music, creating a festive atmosphere throughout the country. Though the official date may change historically, June 23 remains a consistent occasion for patriotic celebration.

The National Day of Remembrance for Victims of Terrorism is observed annually on June 23 in Canada. Established in 2012, it commemorates the memory of all Canadian victims and survivors of terrorist acts at home and abroad. The date marks the anniversary of the Air India Flight 182 bombing in 1985, the deadliest terrorist attack involving Canadians. Ceremonies, memorial services, and moments of silence are held across the country to honor those affected by terrorism. Educational programs and community events promote awareness of the impact of terrorism and support for survivors. The day reinforces Canada's commitment to peace, security, and solidarity with victims of violence.

Victory Day, known as Võidupüha, is celebrated in Estonia on June 23 in honor of the 1919 Battle of Võnnu. This decisive victory during the Estonian War of Independence secured the fledgling republic's freedom. Military parades and ceremonial guards are held in the capital Tallinn and at memorial sites across the country. Wreath-laying ceremonies at monuments pay tribute to the soldiers who fought for Estonia's sovereignty. Schools and civic groups organize educational events to teach about the battle's historical significance. Victory Day fosters national pride and reflects on the sacrifices made for Estonia's independence.