People often celebrate personal milestones like birthdays and weddings. Birthdays are a big deal because they mark another year of life, and people usually have parties with friends and family. Weddings are also major events, celebrating the union of two people. Anniversaries, graduations, and retirements are other personal milestones that people like to celebrate, as they mark significant achievements or stages in life.

Cultural and religious events are also widely celebrated. For example, Christmas is celebrated by Christians to mark the birth of Jesus Christ. Muslims celebrate Eid to mark the end of Ramadan. Hindus celebrate Diwali, known as the festival of lights. Chinese New Year is another big celebration, marking the lunar new year. These events are important for cultural and religious reasons and bring people together.

National and public holidays are also popular celebrations. Independence Day is celebrated in many countries to mark their freedom. Labor Day honors the contributions of workers. New Year's Day is celebrated worldwide to welcome the start of a new year. National Day and other public holidays often involve parades and fireworks, bringing people together to celebrate their nation's history and achievements.