In that year historic even about glass should appear.
Look this line from descr_events.txt file in campaign folder:
I tried forcing that event to 3rd game turn and it didn't crashed game for me.event historic through_a_glass_clearly
date 34 summer
But, well I have RTW patched through BI, so it's maybe only non-BI users issue.
Anyway, try changing event to "date 2 summer", and see does game crash on 3rd turn.
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