1931 - The KIT KAT wafer bar is introduced.
2000 - The KIT KAT BIG KAT wafer bar is introduced.
2002 -KIT KAT Limited Edition White Chocolate and Dark Chocolate wafer bars are introduced.
2003 - KIT KAT expands its limited edition line to include mint and orange flavors.
2004 - KIT KAT BIG KAT Limited Edition White Chocolate and KIT KAT Triple Chocolate wafer bars are introduced.
2004 - The KIT KAT White Chocolate wafer bar is made into a year round product.
2005 - KIT KAT Extra Crispy introduced in 2005.