Did paper airplanes and kites originate in Greece and were first invented in the world?

Paper airplanes and kites did not originate in Greece.

Paper plane:

Making toys out of paper is thought to have originated in China 2000 years ago, when kites were a popular entertainment. Although all these can be regarded as evidence of modern paper airplanes, no one can reliably provide accurate evidence to point out where the invention originated; With the passage of time, the speed, buoyancy and shape design of paper airplanes have been greatly improved.

In the west, the earliest paper plane can be traced back to the 1980s and was made in 1909. But at present, the most accepted mode of production is the [source request] proposed by John K. Northrop (one of the founders of Lockheed) in 1930. Northrop Corporation made a simulation test with paper airplanes to discover the flight mechanism of real airplanes.

Kite:

Kites originated in China, and kites in China have a long history. The earliest kites were made of wood instead of paper. Legend has it that the first kite was made by "Luban" and called "wooden kite". The Old Story of Zhu Gong records that Lu Ban "tasted it as a wooden kite and took it to see Song Cheng". "Lu Chunqiu Love Class" records that "losing is like a high ladder, and I want to attack the Song Dynasty. When Mozi heard about it, he went to Lu and pestered his feet day and night. As for Ying's ten days and nights, he said to King Jing,' I am a gentleman in the north. It is said that the King will attack the Song Dynasty. "Can you believe it?" This shows that Lu Ban made a "high ladder" instead of a wooden kite.

The inventor of the wooden kite recorded in Everything is done wrong is not Lu Ban, but Mozi Mo Zhai. Mo Zhai (478-392 BC), a philosopher in the Spring and Autumn Period and the Warring States Period, was a representative of mohists. "Everything goes wrong, the theory of foreign reserves" records that Mo Zhai once "used a wooden kite to fly to the sky in three years". Mozi worked as a wooden kite in Lushan (now Weifang, Shandong). He became famous in three years and lost in one day. This means that Mozi spent three years researching and trial-manufacturing, made a wooden bird out of wooden boards, released it and made it fly successfully, but it broke down after only one day. The "wooden kite" made by Mozi is the earliest kite in the world, with a history of more than 2400 years. The inventor of the wooden kite defined in Kangxi Dictionary is also "Mo Zhai". It is recorded in Mozi that the "wooden magpie" invented by Lu Ban is more exquisite than Mozi's "wooden kite": "The loser cuts bamboo and wood, thinking it is a magpie, and flies three days later." After Cai Lun invented papermaking in the Eastern Han Dynasty, kites made of paper began to appear, called "paper kites".