what are the different types of generations?
['Gen Z, iGen, or Centennials: Born 1996 – TBD.', 'Millennials or Gen Y: Born 1977 – 1995.', 'Generation X: Born 1965 – 1976.', 'Baby Boomers: Born 1946 – 1964.', 'Traditionalists or Silent Generation: Born 1945 and before.']