Rise in restitution claims expected after launch of online German auction catalogues for 1930-45

After a heated debate the purchase, estimated to be worth more than $40m, went ahead

Dallas museum could not raise $100m to buy the authenticated Leonardo, until recently believed to be a mediocre copy

Will the third time be lucky?

Roman and Ottoman-era exhibitions will suffer as US and European museums face tougher calls for restitution

The museum forked out £203,000 for repair and depreciation costs

The chairman of the artist’s catalogue raisonné committee dismisses controversial drawings as “pastiches” in UK bankruptcy hearing

Seven works were stolen as unmanned overnight protection fails

Despite a lavish, 300-page book and a high-profile presentation, strong doubts remain

London’s leading museums lose more than a million visitors during the Games, but Hirst helps Tate Modern buck the trend

The head curator recently reattributed the works to the artist

Design includes a courtyard and new entrance

It’s a Late Stone Age horse, of course?

New curators take the place of the three just gone

Post discussions, a decision is made

He blames Norway’s tax system for his decision

The galleries are set to reopen in May after funding goals were reached

Experts have been silenced by fears of legal action if doubts regarding the sculptures' legitimacy are voiced

More exhibitions are hit by the loans boycott as Turkey pushes for restitution

The Tate says all detailed entries will be available online by 2014, but critics fear loss of scholarship

The photographic archive of paintings was transferred in haste - twice

Provenance of late trustee’s gifts investigated as Turkey takes tougher line on restitution

Revolving door in Cairo as nation’s antiquities left leaderless

The copy by Leonardo's student is the most faithful extant work

Despite the recession, the British Museum, Tate and V&A attract major donations

The works were set to be displayed at a now cancelled authentication debate

Multiple claims for antiquities at New York’s Met, major exhibitions hit at London’s British Museum and Victoria & Albert Museum

Constable and Turner experts may go

Experts say the painting was completed at the same time as Leonardo’s original

Cristiano Lovatelli Ravarino's collection of drawings has been a hot topic in the art world