The origin of Black Friday has nothing whatever to do with shopping. Doris Spencer traces it to a financial panic in the nineteenth century, when the government issued a great deal of paper money backed by credit and the market broke. That is a properly researched post and the best thing here.
She writes from Central America and the country pieces show it. Nicaragua gets history and culture rather than a traveller's list, and there is a serious piece on the drug war across the border.
Her post on a tropical fruit and cancer needs handling carefully. It states plainly that the fruit treats cancer and explains the absence of research by noting that natural ingredients cannot be patented. That is a claim about a serious illness with nothing a reader can check behind it, so take it to a doctor rather than acting on it.
There is a piece on a calendar that was supposed to end the world.
Read the Black Friday post.