According to sources cited in Seder Hadorot, Tevet 28 is both the birthday and the day of passing of Shimon the son of Jacob; other sources place the date as Tevet 21. (See the entry for Tevet 21).
Shimon ben Shetach successfully completed the expulsion of the Sadducees (a sect which denied the Oral Torah and the authority of the Sages) who had dominated the Sanhedrin (Supreme Court), replacing them with his Torah-loyal disciples, on the 28th of Tevet of the year 3680 from creation (81 BCE).
Rebbetzin Chana Schneerson (1879 (O.S.) - 1964), mother of the Lubavitcher Rebbe, was born on Tevet 28.
Thoughts can give life. Thoughts can kill.
For example, a soldier. The Torah commands a soldier at war, “Do not allow your heart to weaken. Do not fear. Do not panic.”
Imagine this: An army is racing towards you. Your eyes have witnessed their savagery. How can you command your heart not to fear?
Maimonides explains: Don't think those thoughts and you will not fear. Dodge them as you dodge a flying arrow.
Because such thoughts threaten not only your life, they endanger the entire nation.
A soldier must think only one thought: What must I do right now?
Today, we are all soldiers.