"Swedish climate leader Greta Thunberg donned a mask and joined a socially distanced Fridays for Future protest in Berlin just a day after she and three other youth activists met with German Chancellor Angela Merkel, whose government took over the European Council presidency in July, to discuss the planetary emergency... Tweeting about the meeting with the chancellor, Fridays for Future Berlin wrote that "conversations must be followed by deeds—that's why we take to the streets together!""
January 1, 1970
https://en.wikiquote.org/wiki/School_strike_for_climate