August 8 - Baseball's new Basic Agreement permits the National League to expand by two teams.
1987
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October 31 - U.S. Senators from eight states, including Colorado Sen. Tim Wirth, announce they have formed a congressional task force to investigate baseball expansion.
1989
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June 15 - Baseball says it will announce a timetable for NL expansion within 90 days after the completion of a new Basic Agreement.
History
