"The Zimbabwean dollar was 'the name of 4 official currencies of Zimbabwe from 1980 to 12 April 2009.' During this period, it was 'subject to periods of above-average inflation, followed by a period of hyperinflation.' Its use as an official currency was “effectively abandoned on 12 April 2009.”

According to a report by CNN, Zimbabwe’s central bank issued the 100 trillion dollar note on 16 January 2009; in other words, it was introduced 13 days after the Bitcoin network went live with Satoshi Nakamoto mining the genesis block (i.e. block 0) of Bitcoin, which had a reward of 50 BTC."