I found it difficult to give this book a star rating, as I would rate it perhaps 1.5 stars in accomplishing the goals I had in selecting this book for our homeschool reading, and maybe at most 4 stars in how well it set out to do what I think the author was trying to do. I settled on 3 stars because I rarely rate a book lower, and it's not the author's fault that I was looking for something a bit different.
First, I think the description of the book could have been clearer as to to the major focus of the book. Author Laurie J. White takes readers through the highlights of English history (and some Reformation history) through the lens of how those historical events affected the language. To be honest, I was looking for a book that was MOSTLY about language to share with my homeschooled children, with some historical references as needed. Instead, I found page after page of historical narrative with a few language tidbits thrown in along the way (and a couple chapters at the end that were more fully language-focused). If that is the type of book you are looking for, this might be a good fit for you!
Second, I was a bit surprised by the obvious Evangelical Christian point of view of the author. This wasn't a problem for me personally as a reader, but I think readers coming from other non-Evangelical Christian points of view (especially Catholic readers) would find her views biased, and those not coming from a Christian point of view at all would most likely not find this to be a suitable choice for their family. I didn't think this was obviously stated in the description on Amazon, so I wanted to mention it to any future readers considering this book.
I also found a couple of issues that would prevent this from ever being a five star book for me. First, the author claims that the first or primary rule of language change is that languages always simplify over time. This is a highly disputed statement among the linguistics community, something even a simple Google search will tell you. In terms of one particular aspect in one family of languages - the inflectional grammar of Indo-European languages - languages have "simplified" in that while many languages in the past were highly inflected, few languages are now. This is only one aspect of language complexity! Rules involving word order, the size of the vocabulary set, and other aspects of grammar have become more complex. Linguists disagree on how to measure complexity among disparate unrelated languages worldwide. How can we compare the tonal variations in Mandarin to the vast vocabulary and orthography of English to the lengthy words created in an agglutinating language like Turkish and say that one is inherently more complex than another or that they are all "less complex" than Lain or Old English? This is a place for acknowledging that "complexity" is still an under-studied aspect of Linguistics as an academic discipline, not to make blanket statements.
Finally, I really wish the author would have footnoted her work. She gives a list of works to refer to for further reading and study, but not clear references as to where specific facts or assertions may have originated. I think this would have helped give the author additional credibility and given readers like me who may have been skeptical on some points, major or minor, a chance to engage with the sources that led the author to make those assertions in the first place.