What was the name of Japan's stock-market peak day at the end of its 1980s bubble?

Japan's stock-market bubble peaked on December 29, 1989, when the Nikkei 225 closed at 38,915.87.

The late-1980s Japanese asset-price bubble was fueled by abundant credit, rising land values, strong optimism, and financial deregulation. Equity and property prices rose dramatically, producing valuations that later proved unsustainable.

After the peak, the Nikkei fell sharply during the 1990s, while land prices also declined. Japan experienced a prolonged period of weak growth, banking problems, falling prices, and corporate balance-sheet repair often called the Lost Decade, although economic difficulties extended beyond the 1990s.

The 1989 peak is sometimes confused with the later low. The Nikkei eventually fell below 8,000 in 2003, but December 29, 1989 identifies the bubble's record closing level, not the bottom of the subsequent bear market.