The LORD spoke to him (Abraham), “I am the LORD, who brought you from UR of the CHALDEANS, to give you this land as an inheritance.” – Genesis 15:7

The house of Abraham in Ur in southern Iraq is mentioned in the Bible Genesis 11:28: “and Haran died before his father Terah in the land of his nativity, in Ur of the Chaldeans”. The house dates to 3000 BC. It was discovered by British Archaeologist Sir Charles Leonard Woolley in 1929. 
Ur Kaśdim, commonly translated as Ur of the Chaldeans, is a city mentioned in the Bible as the birthplace of the patriarch Abraham father of Isacc and Ishmael. In 1862, Henry Rawlinson first identified Ur Kaśdim with Tell el-Muqayyar, near Nasiriyah in southern Iraq. It wasn’t excavated until the 1900’s.
Sinan Salaheddin (4 April 2013). “Home of Abraham, Ur, unearthed by archaeologists in Iraq”.
McLerran, Dan (2011-06-23). “Birthplace of Abraham Gets a
New Lease on Life | Popular Archaeology – exploring the past”. Popular Archaeology. Archived from the original
“Journey of Faith – National Geographic Magazine”. Ngm
“City of Biblical Abraham Brimmed With Trade and Riches”. 11 March 2016.
“Ancient site unearthed in Iraqi home of Abraham”.
David, Ariel (22 March 2018). “Archaeologists Glance Into Fox Burrow in Iraq, Find 4,000-year-old Sumerian Port” –
A. T. Clay, International Standard Bible Encyclopedia, 1915: “kal’-dez (‘ur kasdim; he chora (ton) Chaldaion)
Research by Archaeologist Esther Lovado