The virtual invariability of the most archaic athematic MI verbs in ancient Greek from 1200 BCE (Linear B) – New Testament Koine Greek (ca. 100 AD): The following table clearly illustrates that the most archaic of ancient Greek verbs, namely, athematic verbs in MI, underwent only barely perceptible changes over a span of 1,700 years. This is because these verb forms were already fully developed even as early as in the Mycenaean Greek dialect, written in Linear B (ca. 1600-1200 BCE). This phenomenon falls under the purview of diachronic historical linguistics, whereby the term diachronic means “linguistic change or lack of it over an extended period of time”. The importance of the minimal changeability of archaic athematic MI verbs cannot be over stressed. Regardless of the period and of any particular dialect of ancient East Greek (early: Mycenaean and Arcado-Cypriot, middle: Homeric Epic, an amalgam of various dialects, Classical: Ionic & Attic) & late (Hellenistic & Koine Greek), very little change occurred. In fact, only the second & third person singular underwent any change at all. In Mycenaean Greek alone, the second person singular was didosi & the third person singular was didoti. In all subsequent dialects, the form of the 2nd. person singular became that for the third, while the second person singular itself morphed into didos in all ancient East Greek dialects pursuant to Mycenaean. This was the one and only change the conjugation of the present tense of archaic athematic verbs such as didomi underwent diachronically from 1,600 BCE to 100 AD. The verb didomi effectively serves as the template for the conjugation of the present active of all athematic verbs in MI throughout this historical period. This is just one notable aspect of progressive (D) derived Linear B grammar. There are many others, which of course we shall address in the gradual reconstruction of ancient Mycenaean Greek grammar over the next few months.