History of Space Exploration: Chapter 2, Exercise 2 — Possible Solution
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QUALIFICATION
The source says the June 1944 launch to 174.6 km made the V-2 "retroactively"
the first artificial object to travel into space. That is a later
classification. The V-2 was built as a weapon and was used against cities from
September 1944.

REWRITE
"A June 1944 V-2 launch reached 174.6 km and is retroactively counted as the
first artificial object to reach space."