1929年8月9日
It was hardly a tell-tale sign of trouble, but on August 9, 1929 Wall Street got an inkling of the upcoming crash as the New York Bank raised the rediscount rate on loans to brokers a full point to 6 percent. The hike was precipitated by the unsettling news that brokers had racked up a record $6 million debt, the fourth time during August 1929 that their loans had swelled to record levels. Still, bankers assured the business community that the move, which was the biggest raise to the rate since the close of World War I, wasn't cause for alarm. Soothing words aside, reports from the day note that the new rate did indeed catch Wall Street by surprise. The following day the Dow dropped 14.11 points to close at a month-long low of 337.99. Until that point, investors had been reveling in "Big Bull Market," a record-setting run which was well over a year old. As the DOW hit new highs, the stock market became a national past time; the craze for playing the stocks spread from being the sole province of the big-city elite to a part of the daily life of small-town America. However, as the Reserve Bank's move to advance the interest rate oh-so-subtly suggested, the good times were based on speculation rather than solid financial practices. By November 1929, this quiet hint at a downturn in the market would look more like a prophetic warning call.
1974年8月9日 杰拉尔德-鲁道夫-福特当选美国总统
1974年8月9日，杰拉尔德-鲁道夫-福特就任美国第38任总统。与前面37位总统不同的是，福特并非通过大选获得的任命，而是因前任尼克松总统“水门事件”离职被从副总统的位子上提拔出来的。
福特上任后的首要任务是恢复大众对白宫的信任，决心要恢复总统的信誉，并发誓在他担任总统时所有活动中要襟怀坦白办事公正。福特和尼克松有25年的朋友之交，他在上任一个月后就签字赦免了尼克松。在民心和友情的决断面前，福特毅然选择了后者，不失为一位性情中人。
在经济治理上，福特的做法也显得颇为意识流。当时美国的通货膨胀率达7%，这么高的通货膨胀率足以阻止投资，使得资本外流和流入政府债券。为了克服不断上涨的通货膨胀福特于1974年10月呼吁美国公众要求他们“鞭打通货膨胀”和佩戴写着“WIN”的胸章，颇有些社会主义国家大跃进喊口号的味道。1975年3月福特和国会签署了包括降低所得税的1975年减税法令来刺激经济发展。当年纽约市面临破产时当时的市长亚布拉罕·必姆未能从福特获得担保。《纽约每日新闻》因此登出首页标题《福特告诉城市：去死吧》。
1995年8月9日 五十铃和伊藤忠成为"北京北旅"第一股东
8月9日日本五十铃自动车株式会社和伊藤忠商事株式会社通过协议购买法人股的形式，成为“北京北旅”的第一大股东。这是我国证券市场发生的首例外商通过协议购买法人股成为一家上市公司第一大股东的事件。
2002年8月9日 证监会撤销鞍山证券公司
8月9日证监会发布公告：鉴于鞍山证券公司严重违规经营，为了维护金融市场秩序，保护债权人的合法权益，证监会决定自即日起撤销鞍山证券。鞍山证券成为第一个被撤销的证券公司。
