Question: Mashujaa Day is observed on 20 October commemorates the detention of freemdom fighters including the country's first what?

<P0-S0> Jomo Kenyatta (  1897 – 22 August 1978) was a Kenyan anti-colonial activist and politician who governed Kenya as its Prime Minister from 1963 to 1964 and then as its first President from 1964 to 1978. <P0-S1>  He was the country's first black head of government and played a significant role in the transformation of Kenya from a colony of the British Empire into an independent republic. <P0-S2>  Ideologically an African nationalist and conservative, he led the Kenya African National Union (KANU) party from 1961 until his death. <SEP> <P1-S0>  It was previously known as Kenyatta Day, which was celebrated to commemorate the detention in Kapenguria of freedom fighters Achieng' Oneko, Bildad Kaggia, Fred Kubai, Jomo Kenyatta, Kung'u Karumba and Paul Ngei, often referred to as the Kapenguria Six. <P1-S1> Mashujaa Day, also known as Heroes' Day ("mashujaa" is Swahili for "heroes"), is a national day in Kenya, which is observed on 20 October as a public holiday to collectively honour all those who contributed towards the struggle for Kenya's independence or positively contributed in the post independence Kenya. <P1-S2>  However, following the promulgation of the Constitution of Kenya in August 2010, Kenyatta Day was renamed. <SEP> <P2-S0> Kîrîmîri Forest Is an area dominated by tree vegetation in the Mukuuri locality of Runyenjes, Embu, in the country of Kenya. <P2-S1>  It is recognised as an Ecologically Sensitive Site in Africa by the International Union for Conservation of Nature. <P2-S2>  There are a variety of rare indigenous and medicinal trees that continue to face the threat of deforestation. <P2-S3>  Its center lies at a latitude of -0.41667 and longitude of 37.55 and it has an elevation of 1520 meters above sea level. <P2-S4>  The predominant languages spoken are Kiembu, Swahili, and English. <P2-S5>  The Hill is culturally famous as a hideout for Mau Mau fighters including Embu's most venerated fighter General Kubu Kubu. <P2-S6>  Several schools have been built near the reserve. <P2-S7>  They include the Muragari Primary and Secondary Schools and Kubu Kubu Memorial School. <SEP> <P3-S0> German-American Day (German: "Deutsch-Amerikanischer Tag" ) is a holiday in the United States, observed annually on October 6. <P3-S1>  The holiday, which celebrates German American heritage, commemorates the date in 1683 when 13 German families from Krefeld, near the Rhine, landed in Philadelphia. <P3-S2>  These families subsequently founded Germantown, Pennsylvania, the first German settlement in the original thirteen American colonies, and organized the first petition in the English colonies to abolish slavery in 1688. <P3-S3>  Originally known under the rubric of "German Day", the holiday was celebrated for the first time in Philadelphia in 1883, on the occasion of the 200th anniversary of the arrival of the settlers from Krefeld; and similar celebrations developed later in other parts of the country. <P3-S4>  The custom died out during World War I as a result of the anti-German sentiment that prevailed at the time. <P3-S5>  The holiday was revived in 1983.