What is the first non-manned rocket(answer in English please

Sputnik 1 (Russian: "Спутник-1", "Satellite-1", or literally "Co-traveler-1" byname ПС-1 (PS-1, i.e. "Простейший Спутник-1", or Elementary Satellite-1)) was the first artificial satellite to be put into geocentric orbit by a non-manned rocket. Launched by the Soviet Union on October 4, 1957, it was the first of a series of satellites collectively known as the Sputnik program.
Details at:
http://en.wikipedia.org/wiki/Sputnik_I
Hope it helps.

2007-10-19 19:00:44 補充：
O.K.嗎?

World's first satellite was launched by the Soviet Union on the 4th of October 1957 with the help of a powerful rocket from at the time unknown cosmodrome in Baikonur in the republic of Kazakhstan. It was a metallic sphere weighing 83.6 kilograms equipped with a radio transmitting station. It's fate before and after the launch was very interesting.
The launch provoked a great resonance in the world. The Russian word sputnik quickly entered into many languages.

For the whole article, please click to:
http://www.vor.ru/Space_now/Satellite/Satellite_102_eng.html