The birthright tribes of Ephraim and Manasseh inherited what Jacob's firstborn son, Reuben, should have had. This is a very big subject, one that requires a lot of foundational work, and we begin with the tribe of Ephraim.  One must examine the tribe itself, the collective body of Northern tribes that Ephraim represents, and then the patterns of migration which led these Northern tribes to a specific place known as the United Kingdom. VF-2368.