Answer: FIRSTS

AnswerCrossword Clue
FIRSTSGuinness Book entries
FIRSTSNewsworthy events
FIRSTSThe best quality of certain articles of commerce.
FIRSTSBest quality of merchandise.
FIRSTSBest grades of merchandise.
FIRSTSUnique events.
FIRSTSPremieres.
FIRSTSBlue ribbons
FIRSTSBannister and Lindbergh feats, e.g.
FIRSTSSports triumphs
FIRSTSBest quality of merchandise
FIRSTSSome Guinness Book listings
FIRSTSOriginals
FIRSTSTrack wins
FIRSTSMany Guinness listings
FIRSTSOnes for the record books
FIRSTSSome records
FIRSTSNovel things
FIRSTSNovel events
FIRSTSPrecedent setters
firststhe winning rank in a competition
FIRSTSEarliest occurrences
FIRSTS"Guinness" listings
FIRSTSInitial ones
FIRSTSDebuts
FIRSTSPremieres
FIRSTSBreakthroughs
FIRSTSNotable events
FIRSTSNoteworthy events
FIRSTSGroundbreakers
FIRSTSBaby book entries
FIRSTSGolds
FIRSTSArmstrong on the moon and Hillary atop Mount Everest
FIRSTSThe Wrights' flight, and others
FIRSTSTop-quality merchandise
FIRSTSNew accomplishments
FIRSTSHistoric events
FIRSTSOnes for the record book
FIRSTSSome words in baby books?
FIRSTSThey haven't been done before