The example you've mentioned about the French general Gallieni just shows how money is used to enslave them after the conquest.

Being true or false the assumption that first was the barter than there was money does not change the meaning of the book, to introduce what is Bitcoin and why it is the best form of money that has ever existed.

the book "The Bitcoin Standard" starts with an assumption that is not true.
"first there was barter than there was money ..."
You find this and other fairy tales in a lot of economic books.
(Economics as it is teached today seems to be a kind of religion.)
It was the other way around: first money, than barter.
Here is an example from the book "debt: the first 5000 years":
"I have already mentioned that one of the first things that the French general Gallieni, conqueror of Madagascar, did when the conquest of the island was complete in 1901 was to impose a head tax. Not only was this tax quite high, it was also only payable in newly issued Malagasy francs. In other words, Gallieni did indeed print money and then demand that everyone in the country give some of that money back to him."
[david graber in debt: 5000 years]
http://tracker2.postman.i2p/index.php?action=Download&id=66811

this topic is about the torrent
magnet:?xt=urn:btih:8828ce628054b886f71953883d9b94c42488a4b1&dn=Cloudmoney+-+Brett+Scott.pdf
http://tracker2.postman.i2p/index.php?action=Download&id=67540