is held since

URI: https://gptkb.org/prop/is_held_since
8 triples
GPTKB property
Random triples
Subject Object
gptkb:Annual_Whitestone_Memorial_Day_Parade unknown year
gptkb:Annual_National_Memorial_Day_Concert gptkb:1989
gptkb:World_Economic_Conference 1970s
gptkb:Coney_Island_New_Year's_Eve_Celebration early 2000s
gptkb:Solvay_Conference_on_Physics 1911
gptkb:Cēsis_Medieval_Market 2000s
gptkb:World_Trade_Conference gptkb:1986
gptkb:Tetris_League_Championship gptkb:2010