Snooker The sport has become increasingly popular in China. The origin of snooker dates back to the latter half of the 19th century. In the 1870s, billiards was a popular activity amongst British Army officers stationed in India and several variations of the game were devised during this time. One such variation originated at the officers' mess of the 11th Devonshire Regiment in 1875, which combined the rules of two pocket billiards games, pyramid and life pool. The former was played with fifteen red balls and one black positioned in a triangle, while the latter involved the potting of designated coloured
The Seven Crystal Balls adventures, which had actually been authored later than "The Seven Crystal Balls", in the English version, references are made to events that would occur in "The Calculus Affair" and "The Red Sea Sharks". Biographer Benoît Peeters described "The Seven Crystal Balls" as "the most terrifying of "The Adventures of Tintin"". He believed that in this story, Hergé had come under the clear influence of Jacobs, in that the "décor grows more lush; the details clearer. No more streets suggested by a few lines, monochromatic posters, or characters walking on the edge of the frame." Elsewhere, he noted that in this