Amazon
已确认日期确定性: 已确认已公布为确定日期来源对日期的表述有多确定：已确认、已排期、预估、已推迟或未核实。显示所有“已确认”的图钉可信度 75%总体可信度: 75%该图钉的来源和参考资料对其日期的支持程度。包括来源在内的 4 份资料对图钉开始和结束时间支持程度的加权平均；资料每比最新的一份旧 180 天，权重减半显示所有可信度不低于 75% 的图钉
Wikipedia[1] and most contemporary coverage give November 19, 2007; one outlet (BetaNews[3]) said November 21.Amazon released the first Kindle e-reader on November 19, 2007 for $399, and says its initial stock sold out in about five and a half hours; it stayed out of stock until the following April.
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