Yitro (Exodus 18:1-20:23) contains a record of the single greatest event in all of human history. According to our sources, God spoke Ten Words audibly from the midst of fire. We don’t know precisely when this took place; the Bible doesn’t give us a specific date. We don’t know where it happened; the location of Horeb / Sinai is debated. We don’t know exactly what was spoken from the midst of the fire; our two records of these words (Exodus 20 and Deuteronomy 5) contain differences. And yet, with what we do know, we have the power to change the world for the better. In the third month, on a day called the Day of Assembly, at a place called Horeb, God spoke Ten Words.
*Map of possible locations for Horeb by David P. Barrett of Biblemapper.com.