What is the Lunar New Year Spring Festival? How is the date of the Spring Festival calculated, and why is it different every year? Why is the lunar calendar based on the moon's cycle? What are the dates of the Lunar New Year Spring Festival? What are the customs of the Lunar New Year Spring Festival? What are the taboos and precautions for the Lunar New Year Spring Festival? Why is the Lantern Festival the last day of the Spring Festival?