Final answer:
It is false that Ira Aldridge was knighted. He was a celebrated African-American actor in London known for his Shakespearean performances, but despite his success and the honors he received, he was not granted a knighthood.
Step-by-step explanation:
The assertion that Ira Aldridge moved to London and was knighted is false. Ira Aldridge was an American-born actor who indeed moved to London in the early 19th century and became renowned for his Shakespearean roles. However, he was never knighted. It is worth noting that Aldridge made a significant impact on the arts as one of the first African-American actors to establish a successful career on the international stage, particularly at a time when slavery was still prevalent in the United States.
Aldridge's move to London was driven by the limited opportunities and pervasive racism in America. In Europe, particularly in London, he found more acceptance and was able to pursue his career more freely. He became especially famous for playing roles such as Othello, a character which he is still remembered for today. Yet, despite his success and contributions to the theatre, he did not receive the honor of a knighthood.
This confusion may arise from the fact that Aldridge did receive numerous awards and honors throughout his career, including medals and decorations from various European heads of state. But the title of 'Sir', which is conferred as part of a knighthood in the UK, was not one of them.