However, even Walter Alvarez has acknowledged that there were other major changes on Earth even before the impact, such as a drop in sea level and massive volcanic eruptions that produced the Indian Deccan Traps, and these may have contributed to the extinctions.

However, no signs of either colonization or exploration have been generally acknowledged.

However the counties are still very widely acknowledged, for example as administrative divisions for sporting and cultural organisations.

However, as much as Kemp wanted to minimize government's role, he acknowledged that moves toward a more laissez-faire system should be well-thought out.

However, as it turned out, he was unable to abide by his decision, and in the years before his death he produced a number of acknowledged masterpieces.

However, in 2001 Pope John Paul II acknowledged Dupuis's ' pioneering ' work on the meaning of other religions in " God's plan of salvation of mankind ".

However, from the mid 1920s onwards the importance of his other work was acknowledged, and he was honoured for it.

However, in August 1974, Spain formally acknowledged the 1966 United Nations ( UN ) resolution calling for a referendum on the future status of Western Sahara and requested that a plebiscite be conducted under UN supervision.

However, he also acknowledged that, while greatly improving his trumpet playing technique, Juilliard helped give him a grounding in music theory that would prove valuable in later years.

However, according to Der Spiegel, the authorities failed to act on the tip, and have never acknowledged it in the following 40 years.

However, this implication was challenged by the Ulster Unionists and the United Kingdom of Great Britain and Northern Ireland which was the state internationally acknowledged as having jurisdiction over Northern Ireland.

However, Wallace acknowledged that he got the term from an InfoWorld magazine column by that name in the 1970s, and that he considered the name to be generic, so its use became established over freeware and user-supported software.

However, following the precautionary principle, uncertainty is not a reason for inaction, and this is acknowledged in Article 3. 3 of the UNFCCC ( Toth et al., 2001, p. 656 ).

However, the local government of Ayodhya and the South Korean government validated and acknowledged the legitimacy of the connection and held a ceremony between the two governments to raise a statue of the princess on the banks of the Saryu River.

However, in December 2005, China's Deputy Health Minister acknowledged that the practice of removing organs from executed prisoners for transplant was widespread – as many as 95 % of all organ transplants in China derived from executions, and he promised steps to prevent abuse.

However, Turner Classic Movies says that years later, Chaplin acknowledged a connection between the barber and The Tramp.

However this idea is widely discredited by modern historians as Augustus never acknowledged Drusus as his son, nor did he make any attempt to adopt him.

) However, he acknowledged how dangerous the situation had been, saying later, " If Boney had been there, we should have been beat.

However, it is widely acknowledged that it is extremely difficult to obtain any accurate measurement of the value of fixed capital, especially because even the owner himself or herself may not know what the assets are currently " worth ".

However, the Court acknowledged " the inherent dangers of undertaking to regulate any form of expression ," and said that " State statutes designed to regulate obscene materials must be carefully limited.

However, it is also acknowledged that this portion of the account may be more legend than fact.

However, it must be acknowledged that Mr. Tracy.

However, decoherence by itself may not give a complete solution of the measurement problem, since all components of the wave function still exist in a global superposition, which is explicitly acknowledged in the many-worlds interpretation.

However his acknowledged masterpiece, ' Lord, let me know mine end ', is a Full Anthem.

However, although both states acknowledged Russian patronage and protection, their conflicted national aspirations soon led to a series of hostile actions before and after the short war between them.

However, it was not of innocence in general that I was speaking, but of perhaps the frailest and surely the least important side of it which is innocence in romantic love.

However, in this case as elsewhere it was necessary to arrive at a single standard to be applied to all situations, representing an averaging of conditions, and thus to fix particular points in time which would be considered the dividing points between daytime and nighttime conditions.

However, the nonspecific staining by the Af in tumor sections was considered bright enough to be confused with the staining of small amounts of WTV antigen.

However, all admitted that the `` hindsight '' was not altogether lost.

However, she was able to relax and yield to the moment.

However, in this case the district manager was led to see the errors of his ways.

However, there was no real question of the justice of creating a strong Poland, both industrially and agriculturally, and one unplagued by large minorities of Germans or Russians.

However, the sovereign was not Hobbes' absolute monarch but rather the parliamentary sovereign of Austin.

However, a similar privilege was not specifically provided in section 168 for a person acquiring emergency facilities.

However, the Attorney General of California, at the request of the Secretary of Labor, sought to have the jurisdiction over the issue removed to the Federal District Court, on grounds that it was predominantly a Federal issue since the validity of the Secretary's Regulation was being challenged.

However, the Federal Court held that since the State had accepted the provisions of the Wagner-Peyser Act into its own Code, and presumably therefore also the regulations, it was now a State matter.

However nothing on four legs was supposed to be faster than a lion over a short distance, unless it was a cheetah.

However, it was virtually impossible to screen the mob outside, even if Bonner had manpower available for the purpose.

However likely it was, Pauling said, he couldn't limit himself to it.

However, Haney knew it was not a dream.

However, the confession, which was the only evidence against him, was retracted before the trial.

However, compared with March 1960 new car sales of 4,441, this March was off 23 per cent.

( However, there is little evidence that the late Lumumba was a Communist.

However, lacking requested reinforcements from McClellan, now commanding the Army of the Potomac, Pope was soundly defeated at the Second Battle of Bull Run in the summer of 1862, forcing the Army of the Potomac to defend Washington for a second time.

However Copperhead rhetoric argued that emancipation was a stumbling block to peace and reunification.

However, Plato reports that syntax was devised before him, by Prodicus of Ceos, who was concerned by the correct use of words.