The World Health Organization announced the Ebola outbreak in West Africa.
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A male cheerleader shot and killed four people, and injured four more at two locations in Dallas, Texas.
The EF2 tornado ripped through Brooklyn, New York, for 18 minutes, causing nine injuries and $20 million in damages.
The US Congress made a final decision on the use of the US Dollar as currency.
Smith and Wesson patented the first metal bullet cartridges.
The South Korean band 'Blackpink' released their debut single album 'Square One.'
