en.wikipedia.org/wiki/Middle_dot

The statement says Ancient Greek lacked word spacing or middle dots, full stop. But authoritative scholarship says that is not true across ancient Greek writing as a whole.

A Center for Hellenic Studies essay by Gregory Nagy states that "In early Greek alphabetic writing, the practice of dividing words from each other by way of blank spaces or special marks is well attested" in inscriptions from before the classical period, and that this practice only later became obsolescent as scriptio continua took over.

An Oxford University article on Greek inscriptions likewise explains that, in the ancient Mediterranean world, the equivalent of the space was often the dot, and specifically notes that many ancient Greek inscriptions use such dot-based word division.

So the accurate version is narrower: much ancient Greek writing, especially in the classical and later manuscript tradition, was written in scriptio continua; but it is incorrect to say ancient Greek categorically lacked word spacing or middle dots.

The claim gives a specific month for Unicode support, but the Unicode Consortium's own documents show the character was supported earlier.

Unicode's official Version 4.1.0 page states that Unicode 4.1.0 was released on March 31, 2005. The official Unicode names list for the Combining Diacritical Marks block includes U+0358 COMBINING DOT ABOVE RIGHT, showing that this code point is part of the standard.

An official Unicode mail archive discussing newly assigned characters in Unicode 4.1.0 explicitly lists the range 0358..035C as newly assigned in that version. Since Unicode 4.1.0 was released on March 31, 2005, saying Unicode did not support the diacritic until June 2005 is incorrect.