No symbol after the date indicates that the assigned date is certain. This is typically based on the inclusion of the date in the text of the document

^† indicates that although there is no date on the document itself, internal references or other evidence make the dating probable

^‡ indicates that there is no original date present in the record itself, and there is a lack of sufficient circumstantial evidence, so the date given is the best approximation
[?] after the date indicates that a date cannot be established with any level of confidence, and a speculative date or month has been assigned

See pp. 98-99 of Records of the Salem Witch-Hunt for more information about how dates were assigned.

April 21, 1692

No symbol after the date indicates that the assigned date is certain. This is typically based on the inclusion of the date in the text of the document

^† indicates that although there is no date on the document itself, internal references or other evidence make the dating probable

^‡ indicates that there is no original date present in the record itself, and there is a lack of sufficient circumstantial evidence, so the date given is the best approximation
[?] after the date indicates that a date cannot be established with any level of confidence, and a speculative date or month has been assigned

See pp. 98-99 of Records of the Salem Witch-Hunt for more information about how dates were assigned.

April 22, 1692