What landmark lists when the states joined the Union in Roman numerals?

Here is the question :

WHAT LANDMARK LISTS WHEN THE STATES JOINED THE UNION IN ROMAN NUMERALS?

Here is the option for the question :

• The Washington Monument
• The Jefferson Memorial
• Independence Hall
• The Lincoln Memorial

The Answer:

And, the answer for the the question is :

Explanation:

[STC0011939]. The 36 states that made up the Union at the time of President Abraham Lincoln’s assassination in 1865 are memorialized on the walls of the Lincoln Memorial. Below each state’s name is a Roman numeral representing that state’s admission date into the Union.