Crossword puzzle clue "i called it first"

First word across in the first-ever crossword (1913) and the first of a dozen appearances of the word in this puzzle's grid, written word search-style (left, right, down, and diagonally) ... Can you f

Advertising icon whose first commercial was called "Park Bench"

"A Hard Day's Night" song that Lennon called McCartney's "first 'Yesterday'"

What IBM first called Sonoran Sans Serif

Game company first called Syzygy

Brand of chocolate syrup first called a "milk amplifier"

U.S.'s first so-called "Public Enemy No. 1"

Emperor who called the First Council of Nicaea