History of Space Exploration: Chapter 4, Exercise 1 — Possible Solution
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FOUR POINTS
Date: 12 April vs 5 May 1961 (23 days). Type: orbital vs suborbital.
Duration: about 108 vs 15 minutes. Control: automatic with locked manual
controls vs some manual attitude control.

WHY "FIRST" MISLEADS
Gagarin was first into orbit and the first human in space in the sense the
Vostok article uses; Shepard's flight was suborbital and later. The chapter does
not give how contemporaries judged them.