Cummins ISB and QSB Engine Parts. Based on the Cummins B Series, the ISB engine was launched in 1998 and is available in 4 and 6 inline cylinder models. Design innovations include a 24-valve setup and the Interact electronic engine management system, both contributing to increased fuel efficiency and meeting emission regulations.
From 1920 to 1929, stocks more than quadrupled in value â not because of fundamentals such as corporate production and profits, but rather fueled by rampant speculation. The economic house of cards came to a screeching halt on Black Tuesday, October 29, 1929 when the bubble burst.
Economists still cannot agree on what caused the Great Depression. Most however have agreed that it was a combination of events and decisions that came into play that caused the Great Depression. Stock Market Crash of 1929. The Wall Street Crash of 1929, is cited as the case of the Great Depression. However, while it does share some of the blame the crash ruined peopleâs fortunes and destroyed confidence in the economy. However, most believe that the crash alone would not have caused the Depression. World War One. After World War One (1914-1918) many countries struggled to pay their war debts and reparations as Europe began to rebuild.