Korean Political History I: Chapter 8, Exercise 1 — Possible Solution
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TIMELINE
Jan 1987: Park Jong-chul dies under torture.
9 Jun: Lee Han-yeol critically injured by a tear gas grenade (dies 5 Jul).
10-29 Jun: mass protests after Roh Tae-woo is announced as successor.
18 Jun: about 1.5 million demonstrators nationwide; police reportedly lose
control of the streets.
29 Jun: the June 29 Declaration accepts direct presidential elections.

TURNING POINT
The source singles out 18 June as the major turning point.

CAUTION
The source does not say why the regime conceded after it.