Hints:

1. politicsU.S. President Gerald Ford survived two assassination attempts in California during this month: the first by Lynette "Squeaky" Fromme in Sacramento and the second by Sara Jane Moore in San Francisco.
2. sportsAustrian Niki Lauda clinched his first Formula One World Drivers' Championship after finishing sixth at the Italian Grand Prix in Monza.
3. historyPapua New Guinea officially gained its independence from Australia.
4. cultureWGPR-TV in Detroit, Michigan, began broadcasting, becoming the first Black-owned and operated television station in the United States.
5. technologyU.S. Patent No. 3,906,166 was granted to Martin Cooper and his team at Motorola for their "radio telephone system," a precursor to the first hand-held mobile phone.