تعداد روزنامه و نشریات، باسوادی بزرگسالان به تفکیک جنسیت (1898-1988)
رویدادها
01۱۹۷۹Islamic Revolutionقوت ارتباط
Mohammad Reza Shah's government falls; the Islamic Republic is proclaimed under Ayatollah Khomeini on 1 April 1979.
چرایی این پیوند: The total count of daily, weekly and monthly newspapers and periodicals fell from 237 (per this chart's own source note, covering the period just before the 1980 university closures) to 163 by 1988 (-31.2%), consistent with the post-revolution press environment -- outlets aligned with the deposed monarchy, leftist parties, and other now-disfavored factions were shut down over these years, while the Iran-Iraq War's own wartime press restrictions and foreign-exchange-scarce paper supply likely compounded the contraction through the 1980s.
ملاحظه: This chart has only two data points at the start and end of an eight-year span covering both the consolidation of the new Islamic Republic AND the entire Iran-Iraq War, so the two causes cannot be separated within this data; the chart's own source explicitly labels the 1980 figure as 'before university closures,' suggesting the true post-revolution trough may have come earlier than 1988 and only partially recovered by then, which this two-point comparison cannot resolve.
تأخیر اثر: gradual, 1980-1988منبع: Encyclopaedia Britannica