Yes - the concept of a zero in the list of counting numbers was introduced in around 628AD.
The concept was introduced in tokyo in 2005 but after body changes the GTR went out into production in 2007.
Yes, the concept of cashless policy was introduced in NIGERIA.
Michael Faraday first introduced the concept of electric fields/
Costa Rica introduced the concept of ecotourism.
The concept of the Festivus pole was introduced by the writter Dan O'Keefe. He claimed his family used the concept as early as 1966 but it was introduced to the world through the show Seinfeld in 1997.
1972
Weber
nixon
Satch Regan
Bangladesh
India