We found 2 dictionaries that define the word since the year one:

General (1 matching dictionary)

1. since the year one: Merriam-Webster

Miscellaneous (1 matching dictionary)

2. since the year one: Idioms

▸ Words similar to since the year one ▸ Usage examples for since the year one ▸ Idioms related to since the year one ▸ Wikipedia articles (New!) ▸ Words that often appear near since the year one ▸ Rhymes of since the year one ▸ Invented words related to since the year one