Benz

http://biography.yourdictionary.com/carl-benz

Yuri Gagarin

https://simple.wikipedia.org/wiki/Yuri_Gagarin

Caxton

https://www.britannica.com/biography/William-Caxton

Ballpoint Pen

http://time.com/4083274/ballpoint-pen/

http://www.telegraph.co.uk/technology/2016/09/28/who-was-ladislao-jose-biro-how-did-he-invent-the-ballpoint-pen-a/

Meucci

https://www.famousscientists.org/antonio-meucci/

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