Nouns ending in a consonant followed by -y change the -y to -ies in the plural form.
History is regular. It follows the -ies Conversion rule.
Use plural verbs: "The histories are ready" (not "is ready").
Yes. The plural histories is standard across all English variants.
The word history follows the standard English pluralization rule. When forming the plural, history becomes histories. This follows the -ies Conversion pattern, which is one of the most common plural rules in English.
Understanding why history becomes histories helps with spelling and pronunciation. Nouns ending in a consonant followed by -y change the -y to -ies in the plural form.
When using histories in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The histories are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.