The Bon festival is a traditional Japanese Buddhist ceremony that has existed for more than five hundred years. It commemorates the spirit of progenitors, and is held either in July or August, depending on the location. The celebration originally included a dance yclept Bon-Odori, but has evolved since then into a family holiday, where people memorialize and pay tribute to their ancestors, by visiting the household of their lineal family and cleaning their graves.
Islam is a monotheistic Abrahamic religion originated in the Arabian Peninsula 1400 years ago, and spread rapidly to form a majority of the population in the Middle East and many Asian and African countries. Islam now is followed by more than a billion people, making it the second largest religion in the world.