Linguists agree the ability to speak a language sets humans apart from other animals because we can: . have rules for our sentences use grammar borrow words from other languages invent languages use abstract terms including past and future

1960: wilma rudolph was the first woman to win three olympic gold medals in track and field at one olympic games. she was an american sprinter from tennessee, she was acclaimed the fastest woman in the world. she was among the most visible black women in america and abroad. she became a role model for black and female athletes. she was also known as a civil rights and women right's pioneer.

1973: billy jean king is an american former number one tennis player. she represented the united states in the federal cup and the wightman cup. for three years she was the usa's captain in the federation cup. she defends gender equality and has been a pioneer for equal and social justice. at the age of 29, she won "the battle of sexes" tennis match against the 55 year old bobby riggs. she was also the founder of women's tennis association and the women's sports foundation.  

1983: tamara mckinney becomes the first american female skier to win the alpine world cup overall championship top. she was the only american to hold that title for a quarter century until 2008.

1992: manon rhéaume, from canada,   becomes the only woman to start in a national hockey league game in an exhibition game for the tampa bay lightning . she played on the canada women's national ice hockey team winning gold medals in 1992 and 1994. and silver medals in 1998. manon marked the first time a woman appeared in a regular season professional game with her first appearance against the salt lake golden eagles.

2013: serena williams won 78 of 82 matches at the age of 31. she is an american professional tennis player. she reached the number 1 ranking for the first time on july, 8, 2002. at the age of 16, she played against karsten braasch the battle of sexes. she was the highest paid female athlete in 2016. she is a unicef ambassador .

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one of the strengths of the united nations is their worldwide peacekeeping. they prevent conflict from escalating into war, try to reach agreements between the opposing sides, and bring war to an end as soon as possible. they also have a world food programme which is among the most effective food aid programmes worldwide. the united nations provides food and clean water to people in need, they also send money to strengthen the country's economy. the united nations also provides unaids, which is healthcare to hiv patients. they also raise funds to prevents aids/hivs and the spreads of others diseases. they also have campaigns that show how to protect from certain diseases. the united nations also has the unhcr, the united nations high commissioner for refugees, which is an aid to refugees. it them by raising funds to build up refugee camps or to improve housing and sanitary facilities. it also has many programmes to raise awareness about the refugee crisis and the needs of the refugees. the united nations high commissioner for refugees also builds schools in crisi regions and refugee camps. a major strength of the united nations is its efforts in elucidating the crisis from which it emerged. as such many of the issues which the world was confronted with in 1945 have been addressed. this can be seen with the organization’s mediatory efforts in resolving conflict in territories. intrinsically, particular reference can be observed in the cold war era 1947-1953 where the world was in a state of political and military tension between the powers of the western world led by the united states and the communist world led by the soviet union. as the world was divided east and west, capitalist and communist, us and ussr, the united nations had its first opportunities to establish its role as a mediator in the international system. moreover, the united nations was involved in the establishment of an israeli state on the eastern mediterranean coast. violence erupted between israeli forces and palestinians and their arab allies in response to the foundation of the state of israel. there has also been the promotion of democracy where the united nations has enabled people in many countries to participate in free and fair elections including those held in cambodia, namibia, el salvador and south africa. additionally, there has been the promotion of women’s rights, particularly in middle eastern countries, to have greater control over their lives. the united nations fund for women (unifem) have supported projects in improving the quality of life for women in over 100 countries including marketing opportunities, access to food production and so on.

however, despite these strengths there exist deep seated shortcomings of the organization in the contemporary world. notable of these is the fact that the world today is a different world than the epoch in which the united nations was born. at that time the issues facing the organization was the achievement of peace and security in a world of great powers, the insistence of the united states that the european powers should grant independence and self-government to their colonies and so on. nonetheless, some of these remain but many have changed. the world and its political atmosphere have undergone a massive transformation however the structures of the united nations have remain unchanged. these structures have failed to keep pace with the new demands which must be presently addressed. consequently, given these circumstances the united nations now faces increasing demand for change both in its institutions and in the subject matters of its concern. lastly, another weakness involves that of corruption and mismanagement. there have been reports of a cascade of scandals at the hands of the united nations. most notable of these is the wholesale corruption of the oil-for-food relief program in iraq, disappearance of united nations funds and the exposure of a transnational network of sexual misconduct by united nations peacekeepers in africa. to add, there have been political pressure, favoritism and cronyism plaguing appointments to united nations peace operations. as such it can be examined there exist a culture of impunity where the united nations operates with secrecy and is shielded by diplomatic immunity. consequently, it is no doubt that this result in institutional weakness and a staff that is less than ideally equipped to complete the required tasks. in essence, the united nations as an organization contains both pros and cons in its performance and functions. its strengths emphasizes its utmost importance in the international arena in terms of it neutral stance and mediator efforts however this is questionable when and examination of its weaknesses is undertaken.

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george calvert wanted maryland to be a colony where could live safely. because georgia's founders wanted a colony of small farms rather than large plantations, they originally banned under british law in the 1700s, people who owed money could be

most people now work in jobs where they do one  kind  of work; they are carpenters, bankers, cooks, mechanics, and so forth. likewise, most  businesses produce  only certainkinds  of  goods  or  services, such as cars, tacos, or gardening  services. this feature of  production  is known as specialization.