In 1974, India became the sixth country to test nuclear weapons, a 50 year leftist dictatorship ended in Portugal and Richard Nixon resigned from office. Gerald Ford became the 38th president of the United States.
Richard Nixon was the first president to resign from office. An impeachment case was opened against him one day prior to his resignation. The impeachment case charged Nixon with obstruction of justice, refusal to submit subpoenaed material and failure to uphold laws. When Ford became president, he pardoned Nixon for all of the crimes almost exactly one month after his resignation from presidential office.
In 1974, folk rock singer Mama Cass died. Number one songs for that year included John Denver's "Sunshine on my Shoulders" and Elton John's "Bennie and the Jets." The Post-it note was invented, Yankee Candle opened their first candle factory and liposuction was invented in Italy. One of the most influential occurrences in 1974 was the creation and original use of the first UPC bar code. The bar code was printed on a package of Wrigley's gum and was scanned at a Marsh's store in Troy, Ohio. This bar code set was the precursor to the way most retail products are scanned.