(Worldkings.org) de Havilland Aircraft Company produced the world's first commercial jet airliner. The Comet 1 prototype first flew in 1949.

(Worldkings.org) The Big Rocking Horse is the world’s biggest rocking horse made of steel.

(Worldkings.org) Kirkland & Ellis is the world's largest law firm by revenue. The highest-grossing law firm in the world, Kirkland is ranked second globally with respect to estimated profits per equity partner (US$5.195 million in 2019).

(Worldkings.org) HP introduced the world's first handheld scientific electronic calculator in 1972.

(Worldkings.org) Hanover Fairground is the world's largest exhibition ground by surface area. It features 496,000 m² (5.3 million sq.ft.) of covered indoor space, 58,000 m² (624,306 sq ft) of open-air space, 27 halls and pavilions and a convention centre with 35 function rooms.

(Worldkings.org) Yamaha Corporation is the world's largest piano manufacturing company. The company's origins as a musical instrument manufacturer are still reflected today in the group's logo—a trio of interlocking tuning forks.

(Worldkings.org) The Mosaic Company is the world's largest producer and marketer of potash and phosphate fertilizer.

(Worldkings.org) Munich Re is the world's largest reinsurance company. Munich Re has clients (insurance companies) worldwide. It assures part of the risk covered by these insurance companies, as well as providing comprehensive advice on insurance business.

(Worldkings.org) Pearl River Piano Group houses the world's largest piano factory. In 1998, Pearl River became the first piano company in China to receive International Standards Association ISO 9001 Certification (ISO 9001) for its complete line of grand and vertical pianos, including all parts and components.

(Worldkings.org) Red Bull Vietnam successfully organized an event called “Positive Day” at Phu Tho Stadium (District 11, Ho Chi Minh city, Vietnam) on the morning of 11 July, 2020. The event attracted more than 2000 participants joining in a fist bump relay and forming S-shaped map of Vietnam. Besides, the event was also designed to set Asian record for Red Bull Vietnam.