“Twentieth century's final years witnessed some cataclysmic events unprecedented in history.”

“Whatever cataclysmic collision forged the glassy rocks occurred about half a million years ago.”

“These are different from the reforms of the early 1990s that created cataclysmic changes in the day-to-day life of ordinary Russians.”

“The cataclysmal storm left behind a trail of destruction and despair, causing widespread misfortune and ruin.”

“The cataclysmal storm unleashed its fury upon the coastal town, leaving behind a trail of destruction.”

“Lyall in England had shown that geological formations were evolutionary rather than cataclysmal.”