It was invented in the 20th century
no. it was the... can anyone add plz!! The list I found said it was the Radio that was the best invention of the 20th century. Put it in related links.
The internet was invented in the 20th century, specifically in the late 1960s with the development of ARPANET, the precursor to the modern internet.
in da 20th century.
20th century
William Hoover invented the vacuum cleaner in the early 20th century.
your face it invented got it
The touch screen wasn't invented in the 21st century, it was invented in 1971, which is the 20th century.
YES, GLIDERS WERE INVENTED IN THE EIGHTEENTH CENTURY AND THE AIRCRAFTS WERE INVENTED IN EARLY OF 20TH CENTURY I.E. 1903.
It probably was as lots of new technology had been invented then.
somewhere in the 20th or 21st century
Edgar doryea