鼎革

鼎革	dǐng gé	change of dynasties / clear out the old, bring in the new
鼎	dǐng	ancient cooking cauldron with two looped handles and three or four legs / pot (dialect) / to enter upon a period of (classical) / Kangxi radical 206 / one of the 64 hexagrams of the Book of Changes
革	gé	animal hide / leather / to reform / to remove / to expel (from office)