This fiftieth trading week of 2011 comes to a close with investors still pondering whether or not Europe has resolved its debt crisis.

FORBES: Weekly Wrap

He was photographed as he chatted with Amin and an Israeli diplomat at a reception held at the Soviet Embassy commemorating the fiftieth anniversary of the death of Lenin.

FORBES: Social Security Benefits: A Personal Story, Speech at Institutional Capitol Investing Forum. (September 1, 1999)

Brown and Mr. Smith both teach a classroom of third graders who score at the fiftieth percentile on math and reading tests on the first day of school, in September.

NEWYORKER: Most Likely to Succeed

Next month, Somalia will celebrate the fiftieth anniversary of its independence a time when, without concern for regional or tribal affiliation, Somali patriots united behind the cause of liberty and dignity for their country.

UN: Secretary-General

Recent events in the Soviet bloc notably the formation of a 400-mile human chain running from Lithuania to Latvia in protest of the fiftieth anniversary of the Pact have forcefully revealed, however, that this reprehensible accord continues to have significance even today.

CENTERFORSECURITYPOLICY: Freedom Flame 2013

That's a number that many services would dream of reaching, but it's just one-fiftieth of Facebook's user base.

ENGADGET: Switched On: Extreme takeover, Home edition

Later founded JG Summit, a conglomerate with telecom, property, food, airline and textiles interests, that is celebrating fiftieth anniversary this year.

FORBES: Magazine Article