Although shortcomings and crippling ideological vacillations brought this Period to an end, the tone of the "Third Period" resonated powerfully with the mood of many militant workers of the time, especially following the Stock Market Crash of 1929 and the ensuing crises of the 1930s. In many countries, including the United States, local Communist Parties' membership and influence grew as a result of the "Third Period" policies.[5]