The Lego Group world's largest toy company by revenue, with sales amounting to US$2.1 billion, surpassing Mattel, which had US$1.9 billion in sales. On 11 August 2017, Lego announced that Niels B. Christiansen would become the new CEO, effective 1 October of the same year. The history of Lego spans nearly 100 years, beginning with the creation of small wooden playthings during the early 20th century. Manufacturing of plastic Lego bricks began in Denmark in 1947, but since has grown to include factories throughout the world. In 1961, Lego was managed by Samsonite until 1972 in the United States and 1986 in Canada.
The Lego Group 2011, sales for the company grew 11%, rising from $2.847 billion in 2010 to $3.495 billion in 2011. Profit for 2011 fiscal year increased from $661 million to $776 million. The increased profit was due to the enormous popularity of the new brand Ninjago, which became the company's biggest product introduction ever. In 2012, it was reported that The Lego Group had become the world's most valuable toy company ahead of Mattel with a value at over $14.6 billion. The Lego Group delivered a turnover of DKK14,142m in the first half of 2015 with an increase of 18% compared with