Who invented this riddle?

Crossword is an English crossword puzzle, which is common in British and American newspapers. There are many small black and white squares in a square. Fill in a letter vertically or horizontally in each white box according to the numbering tips given, and finally make an English word in both directions. The black box is a waste box, so don't fill it in.

The crossword puzzle was invented by Arthur Wen in 19 13. He works in a newspaper and writes humorous jokes. His crossword puzzle first appeared in new york Sunday World News. Soon, American newspapers followed suit and swept the United States. At that time, American libraries were crowded with people looking up dictionaries. People also discuss crossword puzzles when they meet on the road. It is said that at that time, Americans spent 5 million hours on crossword puzzles every day. At first, The Times criticized Americans for wasting too much time on crossword puzzles, but it didn't take long for crossword puzzles to become popular in Britain.

American and British crossword puzzles have different characteristics. American crossword puzzles focus on testing readers' vocabulary and knowledge, while English crossword puzzles are tortuous and obscure. For example, the tip is an important city in Czechoslovakia, and the answer is a four-letter word: Oslo (the capital of Norway), not the capital of Czechoslovakia. Because the word Czechoslovakia has four letters oslo.

There are many forms and modes of crossword puzzles now. The crossword puzzle designed by the Belgians in 1988 is the largest crossword puzzle in the world, with 30 meters square and 50,000 prompts. Unfortunately, no crossword puzzle has been designed for Chinese characters so far.