Which school opened in 1823?

The Pennsylvania School for the Deaf, founded in 1820 but opening its doors for students in 1821, is indeed one of the earliest institutions planned for the education of deaf students in the United States. It is known for being the first school for deaf students in Pennsylvania and played a significant role in the development of deaf education in the U.S.

However, the correct answer related to your question is the Virginia School for the Deaf and Blind, which officially opened in 1823. This school was significant in the history of deaf education as it was one of the first to cater to both deaf and blind students together. Its establishment represented a growing awareness and initiative to provide specialized education for individuals with sensory disabilities.

Each of the other options represents important institutions in deaf education but did not open their doors until after 1823 or have different founding dates. For example, the Kentucky School for the Deaf opened in 1823 as well, but it is often noted in later discussions, while the New York Institution for the Instruction of the Deaf and Dumb was established in 1817. Recognizing the timeline of these schools is crucial for understanding their historical context and contribution to deaf culture and education.