Personal papers belonging to Margaret Thatcher have been given to the nation in lieu of death duties.
The former prime minister won three elections over 11 years and as might be imagined, the collection - ranging from a memoir of the Falklands Conflict to copies of speeches - is extensive.
The documents have been added to the Churchill archive in Cambridge.
ITV News Political correspondent Libby Wiener reports
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A former bodyguard to Margaret Thatcher claims he warned her one of her top aides, Sir Peter Morrison, allegedly held sex parties with under-age boys.
Barry Strevens, who is also an ex-detective chief inspector for Cheshire Police, said he passed on the allegations immediately.
But despite learning of the rumours he claimed Lady Thatcher appointed Sir Peter deputy party chairman of the Tory party. He died in 1995 but has since been linked to child sex abuse claims in North Wales.
Mr Strevens told the Sun on Sunday (£): "I am sure he would have given her assurances about the rumours as otherwise she wouldn't have given him the job."
Tory grandee Lord Tebbit has previously said he confronted Sir Peter over the allegations and received a flat denial.
A full-scale investigation into claims of an alleged paedophile ring in Westminster is now underway.
Earlier this month Ex-Tory activist Anthony Gilberthorpe also claimed Thatcher knew about alleged illicit sex parties within her party.
Former Prime Minister Margaret Thatcher knew about an alleged paedophile ring among the Conservative Party in the 1980s, according to the Sunday Mirror.
Ex-Tory activist Anthony Gilberthorpe told the newspaper he was asked to supply cabinet ministers with underage boys for illicit sex parties.
Mr Gilberthorpe claims he handed Thatcher, who died last year, the names of those involved 25 years ago but no action was taken.
Two inquiries are to be held into alleged child sex abuse involving MPs and wider institutions such as the NHS, the Church and the BBC.
Margaret Thatcher considered calling on troops at the height of the miners' strike amid fears union action could destroy her government, according to newly-declassified files.
Government papers from 1984, released by the National Archives, show ministers were so concerned at the outbreak of a national docks strike while the miners were still out, they considered declaring a state of emergency.
Plans were drawn up for thousands of service personnel to commandeer trucks to move vital supplies of food and coal around the country.
It is thought to be the closest Mrs Thatcher came to defeat in her battle with the miners but the scheme was never implements after the dockers' action petered out after less than two weeks.
As Prime Minister, Margaret Thatcher's immaculately coiffed blonde locks were as much a part of her image as her famous handbag - and newly-released government files show just how much time she spent keeping up appearances.
Her appointments diary for 1984, released by the National Archives, show that she had 118 hair appointments in the space of 12 months.
In June, when she was hosting world leaders at an economic summit in London she had hair appointments on five consecutive days.
The diary also confirms her reputation as a workaholic who found it difficult to relax.
Margaret Thatcher threatened to scrap a visit to Ireland because it was being "unfriendly" about the Falklands War, new records reveal.Read the full story ›