Table: soccer_history
Columns: season
mls_reg_season
mls_cup_playoffs
u_s_open_cup
concacaf_champions_cup_champions_league

Question: What were the placements of the team in regular season when they reached quarterfinals in the U.S. Open Cup but did not qualify for the Concaf Champions Cup?
SQL: SELECT "mls_reg_season" FROM soccer_history WHERE "u_s_open_cup" = 'Quarterfinals' AND "concacaf_champions_cup_champions_league" = 'Did not qualify'

Question: How did the team place when they did not qualify for the Concaf Champions Cup but made it to Round of 16 in the U.S. Open Cup?
SQL: SELECT "mls_cup_playoffs" FROM soccer_history WHERE "concacaf_champions_cup_champions_league" = 'Did not qualify' AND "u_s_open_cup" = 'Round of 16'

Question: When was the first season?
SQL: SELECT MIN("season") FROM soccer_history