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Australian archaeologists using remote-sensing technology have uncovered an ancient city in Cambodia that has remained hidden for more than a millennium under dense jungle undergrowth.

The discovery of Mahendraparvata, a 1,200-year-old lost city that predates Cambodia's famous Angkor Wat temple complex by 350 years, was part of the Hindu-Buddhist Khmer Empire that ruled much of Southeast Asia from about 800 to 1400 A.D., during a time that coincided with Europe's Middle Ages.

A recent directive issued by the U.S. Navy was transmitted in the customary format, using all uppercase letters. Sailors, it said, are:

"AUTHORIZED TO USE STANDARD, MIXED-CASE CHARACTERS IN THE BODY OF NAVY ORGANIZATIONAL MESSAGES."

U.N. Secretary-General Ban Ki-moon said Friday that he opposes the U.S. decision to provide Syrian rebels with military support.

"The United Nations, and in particular I, have been making it consistently clear that providing arms to either side would not address this current situation," Ban told reporters during a briefing. "There is no such military solution."

Millions of Iranians cast ballots Friday in elections to replace incumbent President Mahmoud Ahmadinejad, a race that is being characterized as a potential challenge to the country's ruling Islamic clerics.

A slate of conservatives tacitly backed by Supreme Leader Ayatollah Ali Khamenei are facing off against the lone moderate, Hasan Rowhan, a former nuclear negotiator.

Other candidates include Saeed Jalili, also a nuclear negotiator; Tehran Mayor Mohammad Bagher Qalibaf; and Khamenei's diplomatic adviser, Ali Akbar Velayati.

While firefighters are holding the line, the Black Forest fire northeast of Colorado Springs is being called the most destructive in Colorado history.

Update At 7:35 p.m. ET. Progress Reported

The fire is now 30 percent contained, officials say.

"We had a real good day without wind," says federal incident commander Rich Harvey. "I think the rain had a tremendous impact. So, some things finally turned in our favor."

With a 109-93 win, the Miami Heat evened their championship series against the San Antonio Spurs on Thursday night.

As The Miami Herald put it, the game served as a dazzling display for Miami's Big Three:

The daily lowdown on books, publishing, and the occasional author behaving badly.

(This post was last updated at 1:31 p.m. ET.)

On Thursday, the United States revealed that it now has "high confidence" that the Syrian regime had used chemical weapons against rebel forces.