Karl Friedrich Benz (help·info) (November 25, 1844 – April 4, 1929) was a German engine designer and car engineer, generally regarded as the inventor of the gasoline-powered automobile, and together with Bertha Benz pioneering founder of the automobile manufacturer Mercedes-Benz. Other German contemporaries, Gottlieb Daimler and Wilhelm Maybach working as partners, also worked on similar types of inventions, without knowledge of the work of the other, but Benz patented his work first, and, subsequently patented all the processes that made the internal combustion engine feasible for use in an automobile. In 1879 his first engine patent was granted to him and in 1886 Benz was granted a patent for his first automobile.

Karl Benz was born Karl Friedrich Michael Vaillant, in Karlsruhe, Baden, which is part of modern Germany, to Josephine Vaillant and a locomotive driver, Johann George Benz, whom she married a few months later. When he was two years old, his father was killed in a railway accident, and his name was changed to Karl Friedrich Benz in remembrance of his father.

 Bertha Benz (help·info) (née Ringer) was born on 3 May 1849 in Pforzheim, Germany. She married inventor Karl Benz on 20 July 1872, and died 5 May 1944 in Ladenburg. She invested in Benz's business in 1871, enabling him to develop the first patented automobile, and in 1888 she was the first person to drive an automobile over a long distance. In doing so she brought the Benz Patent-Motorwagen worldwide attention and got the company its first sales.

In 1871 she invested in the workshop of her fiancé, Carl Benz, making it possible to go on with a long and expensive developing process. As an unmarried woman she was able to do so. Later, when they married, however, according to the law in those days, Bertha lost her juridical power to act.

On July 20, 1872, Bertha Ringer married Carl Benz. Together they had five children: Eugen (1873), Richard (1874), Clara (1877), Thilde (1882), and Ellen (1890). On August 5 1888, without telling her husband and without permission of the authorities, Benz drove with her sons Richard and Eugen, thirteen and fifteen years old, in one of the newly-constructed Patent Motorwagen automobiles—from Mannheim to Pforzheim—becoming the first person to drive an automobile over a real distance. Motorized drives before this historic trip were merely very short trial drives with mechanical assistants. This pioneering tour had a one-way distance of about 106 km (66 mi).

Gottlieb Daimler (German pronunciation: [ˈɡɔtliːp ˈdaɪmlɐ]; March 17, 1834 – March 6, 1900) was an engineer, industrial designer and industrialist born in Schorndorf (Kingdom of Württemberg, a federal state of the German Confederation), in what is now Germany. He was a pioneer of internal-combustion engines and automobile development. He invented the high-speed petrol engine and the first four-wheel automobile.

Daimler and his lifelong business partner Wilhelm Maybach were two inventors whose goal was to create small, high-speed engines to be mounted in any kind of locomotion device. In 1885 they designed a precursor of the modern petrol (gasoline) engine which they subsequently fitted to a two-wheeler, the first internal combustion motorcycle and, in the next year, to a stagecoach, and a boat. Daimler baptized it the Grandfather Clock engine (Standuhr) because of its resemblance to an old pendulum clock.

In 1890, they founded Daimler Motoren Gesellschaft (DMG, in English—Daimler Motors Corporation). They sold their first automobile in 1892. Daimler fell ill and took a break from the business. Upon his return he experienced difficulty with the other stockholders that led to his resignation in 1893. This was reversed in 1894. Maybach resigned at the same time, and also returned. In 1900 Daimler died and Wilhelm Maybach quit DMG in 1907. In 1924, the DMG management signed a long term co-operation agreement with Karl Benz's Benz & Cie., and in 1926 the two companies merged to become Daimler-Benz AG, which is now part of Daimler AG.^{[citation needed]}

Terius Youngdell Nash (Born September 20, 1977), better known by his stage name The-Dream, is an American singer-songwriter and record producer. He is known for co-writing chart topping hits such as "Baby" for Justin Bieber, "Umbrella" for Rihanna and "Single Ladies (Put a Ring on It)" for Beyoncé, as well as for his three solo albums, Love Hate, Love vs. Money, and Love King.

Terius Nash was born in Rockingham, North Carolina and moved with his mother, Reva Nash, to Atlanta at the age of 3. He played trumpet, drums, and guitar as a child. His mother died in 1992 when Nash was fifteen years old, an event which would inspire him to write songs. He states that the death of his mother gave him a "soft spot" for women, which he credits to his desire to write songs about female empowerment such as Rihanna's "Umbrella". He moved in with his grandfather, a concrete mason who instilled a strong work ethic in young Nash. Of his grandfather, Nash recalls "He came out of a bad time for blacks in the South, but even though we lived in the hood, we had a boat, some cars and a house that was paid for. So I’ve always had a different outlook on life. There’s nothing I can’t do."

Karl Ferdinand Braun (6 June 1850 – 20 April 1918) was a German inventor, physicist and Nobel laureate in physics. Braun contributed significantly to the development of the radio and television technology: he shared with Guglielmo Marconi the 1909 Nobel Prize in Physics.

Braun was born in Fulda, Germany, and educated at the University of Marburg and received a Ph.D. from the University of Berlin in 1872. In 1874 he discovered that a point-contact semiconductor rectifies alternating current. He became director of the Physical Institute and professor of physics at the University of Strassburg in 1895.

In 1897 he built the first cathode-ray tube (CRT) and cathode ray tube oscilloscope. CRT technology has been replaced by flat screen technologies (such as liquid crystal display (LCD), light emitting diode (LED) and plasma displays) on television sets and computer monitors. The CRT is still called the "Braun tube" in German-speaking countries (Braunsche Röhre) and in Japan (Buraun-kan).

During the development of radio, he also worked on wireless telegraphy. In 1897 Braun joined the line of wireless pioneers. His major contributions were the introduction of a closed tuned circuit in the generating part of the transmitter, and its separation from the radiating part (the antenna) by means of inductive coupling, and later on the usage of crystals for receiving purposes. Wireless telegraphy claimed Dr. Braun's full attention in 1898, and for many years after that he applied himself almost exclusively to the task of solving its problems. Dr. Braun had written extensively on wireless subjects and was well known through his many contributions to the Electrician and other scientific journals. In 1899, he would apply for the patents, Electro telegraphy by means of condensers and induction colls and Wireless electro transmission of signals over surfaces.