The "big bang" happened on January 1, 2002, marking the largest currency changeover in human history.
: In July 2008, the euro reached its all-time peak against the US dollar at $1.5916. The "big bang" happened on January 1, 2002,
: The 2008 global recession and subsequent sovereign debt crises (notably in Greece) tested the currency's stability. Critics argued its "one-size-fits-all" policy struggled to accommodate differing local economic needs. : Unlike the currencies they replaced, euro banknotes
On January 1, 1999, the euro was officially launched as an "invisible" currency. For its first three years, it didn't exist in pockets or purses; it was used exclusively for electronic transfers and accounting purposes by the initial 11 member nations. such as Germany and France
: Unlike the currencies they replaced, euro banknotes do not feature real people. Instead, they depict stylized windows, gateways, and bridges—metaphors for openness and cooperation between European nations. 3. Trials and Expansion (2008–Present)
: Participating countries, such as Germany and France, legally "locked" their national currencies to the euro at fixed rates, effectively making the Deutsche Mark and Franc subdivisions of the new single currency. 2. The Great Changeover (2002)