Crossword puzzles appeared during the early 20th century, gained popularity during the 1920s, and became almost a nationwide craze during 1924. Although some people hoped the puzzles would soon disappear, they continued to shows swing in popularity throughout the 20th century and into the 21st. Card games with words, such as Lotto, predated crossword puzzles by many decades. But crossword-based card games also proliferated after the puzzles became known. Parker Brothers' Lex Crossword Lexicon is one such card game, played very similarly to a crossword puzzle, but with individual letters carrying point values, which appeared in the slightly later board game Scrabble.