B11

Crossword puzzles are the most popular word puzzles in the world. However, their history is really short.

 REAL

B12

They were created in the 19th century in England, but the appearance of the first published crossword puzzle took place in 1913 in the New York World newspaper.

 APPEAR

B13

The author of the puzzle was Arthur Wynne, a journalist born in Liverpool, England.

 JOURNAL

B14

Wynne’s crossword puzzle looked much different from the crosswords used today and had no black squares. 

 DIFFER

B15

At first, only the New York World published such puzzles every week. But in 1924 the first collection of World puzzles was printed in book form and crossword puzzles immediately gained popularity.

 POPULAR

B16

A major breakthrough in crossword puzzle development came with the personal computer. Although many computer specialists used to say that it was impossible for computer to create a crossword puzzle, software was developed which allows any person to construct their own crossword puzzles.

 POSSIBLE