Nigeria's 250+ ethnic groups and roughly equal Muslim/Christian split create a vibrant, year-round festival calendar. Major national celebrations include:
Public holiday. Church/mosque services, family gatherings, fireworks in cities, "crossover" vigils Dec 31→Jan 1.
Christian: Good Friday & Easter Monday = public holidays. Church services, processions (especially East/South), family feasts, Easter eggs for kids.
Muslim: End of Ramadan. Eid prayer (grounds/mosques), zakat al-fitr (charity), feasting (jollof, suya, chin chin), new clothes, visits, gifts (Eidi) for children.
National day (1960 from UK). Parade in Abuja (Eagle Square), presidential address, military display, cultural troupes, school marches. States hold local events. Green-white-green everywhere.
Christian: Christmas Eve vigils (carols, drama), Christmas Day services, massive family reunions (urban→rural migration), feasting (rice, chicken, goat, palm wine), gift exchange, "Knockout" (firecrackers) in streets.
Muslim: Commemorates Ibrahim's sacrifice. Qurbani (ram/cow slaughter), meat shared 3 ways (family, friends, poor). Prayer, feasting, visits.
Nigeria celebrates loudly, communally, and often — faith and culture intertwined.