All 92 naturally occurring elements were discovered and identified in Europe. With the advent of atomic research, the emphasis on the discovery of the artificial elements shifted to the USA.
Taken from the book:
World of the Elements, Elements of the World
Wiley-VCH Verlag GmbH & Co, KGaA, Weinheim, 2007
Print ISBN: 9783527320653, Online ISBN: 9783527611577