- Apr 15 1st American school for the deaf opens (Hartford, Connecticut)
- Apr 15 The American Asylum [now American School for the Deaf (ASD)], 1st permanent US school for deaf founded by Rev. Thomas Gallaudet, Dr. Mason Cogswell, and teacher Laurent Clercn (West Hartford, Connecticut,)
- Apr 22 Curacao prohibits use of white paint due to fierce sunlight
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