With six championships wins, the Pittsburgh Steelers are the most successful NFL franchise in terms of the number of championships, as shown in the graph above.
The New England Patriots are the most recent champions, defeating the Atlanta Falcons in Super Bowl LI with a score of 34-28.
The games were originally created as part of a merger agreement between the American Football League (AFL) and the National Football League, with the first Super Bowl being played on January 15, 1967, following the 1966 football season.
To identify the games, successive Roman numerals are used leading up to the most recent Super Bowl in 2014 (Super Bowl XLVIII).
In the fourth quarter of 2014, World of Warcraft gained more than 10 million subscribers, mostly owing to 'Warlords of Draenor' expansion release in November 2014.
Tsunamis as a result of volcanic eruptions caused some 56,800 deaths during this time period.
The statistic presents the total size of the Bitcoin blockchain, the distributed database that contains a continuously-growing and tamper-evident list of Bitcoin transactions and records, from the third quarter of 2010 to the latest quarter.
The size of the Bitcoin blockchain has been growing since the creation of the Bitcoin virtual currency in 2009, reaching approximately 149 gigabytes in size in December 2017.
The graph presents the evolution of bitcoin price index from January 2016 to January 2018 in euros.