The marks the end of the Christmas season and the beginning of the Ordinary Time.
Isaiah 60:1-6 - prophecy of the coming of Jesus as the "Light", and His visitors who will bring Him gifts.
(Letter/Epistle of St Paul to the) Ephesians 3:2-3, 5-6 - preaching to the Gentiles
Matthew 2:1-12 - visit of the magi to Jesus
Bethlehem
The word means "House of Bread".
Judea
In the time of Jesus, Judea is a Roman province.
Myrrh
Myrrh is a gum-resin extracted from a number of small, thorny tree species of the genus Commiphora. Myrrh resin has been used throughout history as a perfume, incense and medicine. Pictures and more information here.
Isaiah
He is one of the greatest of the prophets. He appeared at a critical moment in Israel’s history.
Ephesians
People of Ephesus (in today's Izmir province of Turkey)
King Herod
Also known as Herod I, or Herod the Great.
Herod reigned from 37 BC to 4 BC. He was a "client king" under the Roman empire.
Magi
singular form is magus.
Magi: originally a designation of the Persian priestly caste, the word became used of those who were regarded as having more than human knowledge.
The identification of the magi as kings may come from Isaiah 60.
Judah
One of the children of Jacob (later named Israel).
This name was used by his descendants to be the tribe of Judah.
The land occupied by the tribe was also called Judah.
Light for the Gentiles.