Spontaneous labor strikes breakout in communist Poland against draconian price increases for food decreed by Prime Minister Wojciech W. Jaruzelski.

       Postscript: The strikes ended five months later only after Jaruzelski agreed to recognized the banned Solidarity independent labor union. 

       [added 1/20/2023]

Subsequent Events:

5/14/1988                   3/9/1989                    6/4/1989                   8/24/1989

References:

Revolutions of 1989 Chronology | Indiana University Libraries
libraries.indiana,edu/revolutions-1989-chronology

History of Solidarity – Wikipedia
en.wikipedia.org/wiki/History_of_Solidarity#Second_Solidarity_(1988–1989)

Current U.s. National Debt:

$36,167,124,467,492

Source