In particular, African Americans and dark-skinned individuals should consult with a qualified skin care provider before using laser skin treatments, deep facial peels, or invasive facial skin treatments that could cause scarring or side effects for dark skin.
And Educa Borras and Ravensburger have been competing to who has the biggest jigsaw puzzle in the world for the last 10 years. So one produced one of at 8,000, and then the other produced one at 10 and then at 12.
15 Puzzle. The 15 puzzle is a sliding square puzzle commonly (but incorrectly) attributed to Sam Loyd. However, research by Slocum and Sonneveld (2006) has revealed that Sam Loyd did not invent the 15 puzzle and had nothing to do with promoting or popularizing it.