Holidays and celebrations are special days or periods of time that are set aside to commemorate or celebrate an event, tradition, or cultural or religious significance. These days can be designated by governments, religious institutions, or other groups or organizations. Holidays often involve spending time with friends and family, participating in fun activities, eating special foods, and taking a break from work or school. Some popular holidays celebrated around the world include Christmas, Easter, and Thanksgiving. There are also many awareness days, weeks, and months that focus on health and environmental issues, such as Earth Day. Holidays help to break up the routine of daily living and create fond memories with loved ones.