Britain's benchmark stock index closed at all-time high as relief over a Greek debt deal helped it finally breach levels struck during the dot.com boom back in 1999.
The FTSE 100 advanced 0.5 percent to 6,949.63, closing above its previous high around 6,930 achieved on Dec. 30, 1999. The index also set an intra-day record of 6,958.89.
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The index has gained more than 12 percent since mid-December but has consistently failed to break through the previous highs.
Shares on Tuesday jumped after eurozone finance ministers approved reform proposals submitted by Greece.