( CNN ) -- Decisive , confident , disciplined , straight-forward and intelligent . These are just a few of the mostly glowing words the U.S. State Department apparently had for Margaret Thatcher in 1975 , according to an alleged cable that WikiLeaks published Monday . Dated February 16 , 1975 , the cable attempts to explain this new rising star on Britain 's political scene . At the time , Thatcher had just won control of the country 's conservative party . She became prime minister in 1979 -- the only woman to hold the job . Thatcher died Monday at age 87 . The cable is available along with a trove of others searchable on a massive database that WikiLeaks claims contains other U.S. documents . Several years ago , WikiLeaks became famous worldwide for publishing sensitive U.S. documents related to the Iraq and Afghanistan wars . CNN can not authenticate material on the database or the Thatcher cable itself . State Department spokesman Patrick Ventrell would not comment on it Monday . As it appears in digital form on WikiLeaks ' site , the cable says Thatcher `` blazed into national prominence almost literally from out of nowhere '' and that her ascent was remarkable because she then had `` narrow range of prior experience . '' But Thatcher had captivated the public , the cable suggests , and was the `` focus of intensive media and popular interest . '' `` There is general agreement among friends and critics alike that she is an effective and forceful parliamentary performer , '' the cable reads . `` She has a quick , if not profound , mind and works hard to master the most complicated brief . She fights her corner with skill and toughness , but can be flexible when pressed . `` In dealing with the media or with subordinates , she tends to be crisp and a trifle patronizing . With colleagues , she is honest and straight-forward , if not excessively considerate of their vanities . '' Read the full cable . The cable goes on to remark that Thatcher abides by the `` courage of her convictions , and once she has reached a decision to act , is unlikely to be deflected by any but the most persuasive arguments . '' She was , the cable adds , `` the personification of a British middle class dream come true . '' `` The daughter of a grocer , she had by dint her own abilities and application won through , securing scholarships to good schools , making a success of her chosen career , and marrying advantageously . '' The British leader had `` conventional and somewhat forced charm , and above all her plummy voice stamp her as the quintessential suburban matron , and frighteningly English to boot . '' The cable predicts what the future holds for Thatcher . `` If she is ever to become Britain 's first woman prime minister , she must ... humanize her public image and broaden the base of her party 's appeal , '' it says . `` The odds are against her , but after her stunning organizational coup d'etat this past month , few are prepared to say she ca n't do it . '' CNN 's Elise Labott contributed to this report .
WikiLeaks : 1975 State Department cable captures political rise of Margaret Thatcher . The alleged cable praises Thatcher , saying she had a quick and profound mind . Score: 6