Those were events antecedent to the revolution.
A pronoun must refer to one and only one antecedent to avoid vagueness or ambiguity.
The cave men lived in a period of history antecedent to written records.
Those were events antecedent to the revolution.
A pronoun must refer to one and only one antecedent to avoid vagueness or ambiguity.
The cave men lived in a period of history antecedent to written records.