<prompt> Translate the following text to SwahiliThe 20th century saw a stupendous release of energies that had been pent up for the 250 years of Tokugawa isolation.  <response>: Katika karne ya 20 kulikuwa na kuondolewa kwa nguvu nyingi ambazo zilikuwa zimesimamishwa kwa miaka 250 ya kutengwa na Tokugawa. 