First oil wells

According to Official Guinness Records,

The oldest evidence of humans drilling for oil goes back to 347 AD, when the Chinese attached rudimentary drill bits to ‘pipes’ made from bamboo. Drilling was achieved to depths of up to 240 m using this method.

For a complete list of Unknown date records, please visit Unknown date Guinness Records in China.

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Other China records that might interest you:

• Land farthest from sea
• First spy satellites using photo-optical
• First silk maps
• Highest consumption of cigarettes (country)
• Oldest known paper