The dates of prices for some pages are wrong
eg https://finance.yahoo.com/quote/%5EDJI/history/ shows the prices for 20 May as 21 May.
Similarly for https://finance.yahoo.com/quote/%5EGSPC/history?p=%5EGSPC
Also, while most pages allow a copy paste of selected prices, the following page does no allow that:
https://finance.yahoo.com/quote/%5EAORD/history?p=^AORD
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