A new NATO member joined the alliance
39 lives lost in mysterious California tragedy
Culmination of the march from Selma to Montgomery
Justice for Srebrenica
A boat's plight captivated the world
A bombshell report landed in Washington
Twitter was born
Piccard and Jones completed their historic balloon journey
Tensions in Iraq escalated into war
The $500 million heist that left experts baffled
South Africa voted to end apartheid
Crimea "voted" to separate from Ukraine
