His epic, Tristrant und Isalde, a laboured version of an Old French source now lost, dates from the last quarter of the 12th century.
But the festival has added 98 performances to compensate partly for the lost dates and to add more chances to see the most popular acts.
The ancient Egyptian Papyrus Ebers is one of the earliest known herbals; it dates to 1550 BCE and is based on sources, now lost, dating back a further 500 to 2000 years.
The latter work looks at the surprising number of important films believed to be lost, dating from the silent era to the 1970s, by the likes of Alfred Hitchcock, Orson Welles, Vincente Minnelli, Stanley Kubrick, and others.
Atlanta Motor Speedway and Lowe's Motor Speedway near Charlotte could lose dates.
Liberals in South Korea have a history of dividing to lose, dating back to Roh Tae-woo's election on just 37% of the vote in 1987.
The most common thing people would ask me was: "Aren't you afraid you're losing dates by wearing a moustache?" and in fact some women did, and still do, refuse to go out with a man with a moustache, any moustache, let alone the kind of moustache I wear.
Exit date is the earliest of 31 December 2009, date lost to follow-up, date of death, date of the first SPT of the type currently being analysed.
Mr. Tuli would not estimate how much money the company has lost to date working on Aakash.
Less than $2 million in revenue has been lost to date, the person said, and some of that has been recouped by moving ads to other slots.
Estimates of how much ITV - and the show's producers, Talkback Thames, and Simon Cowell's company, Syco - could have lost to date vary between £500,000 and £1.5m.
