If you are talking about artificial languages, then it is esperanto which was created in 1880`s.
If you are talking about natural languages, then it is Modern Hebrew, which was revived from a dead language in the 1880's with new vocabulary for modern concepts.
It is difficult to determine the "youngest" language in the world as languages evolve over time. However, one of the youngest created languages is probably Esperanto, invented in the late 19th century by L. L. Zamenhof. Esperanto is spoken in various countries around the world.
Pakistan
Roman is not a language. Latin is the language spoken by the Ancient Romans.
Sanskrit. Spoken in India.
kodei is the language of monkeys, spoken by elephants. it originated from cairo and now it is spoken 0.5 countries.
It is difficult to determine the "youngest" language, as languages evolve over time. However, one example of a relatively new language is Tok Pisin, a creole language in Papua New Guinea that emerged in the late 19th century.
Yo-yo means 'come back come back' in Tagalog, which is the Filipino language.
It is difficult to define "youngest" language, but a possible example is Modern Hebrew, which didn't exist prior to the 1880's and is now one of the official languages of Israel.
Bantu
According to the link below, Chinese is the most widely spoken language in the world. Spanish and English come in second and third, respectively. French comes as the tenth-most widely spoken language.
The English word 'mongoose' is from mangus (मंगूस) in the Marathi language, which is spoken in West India.
Dutch is primarily spoken in the Netherlands. It is the official language of the country and is also spoken in parts of Belgium and Suriname.