Paul Blobel (13 August 1894 – 7 June 1951) was a German SS commander and convicted war criminal who had a leading role in the Holocaust. He organised and executed the Babi Yar massacre, the largest massacre of the Second World War at Babi Yar ravine in June 1941 and following re-assignment developed the gas chambers for the . From late 1942 onwards he carried out Operation 1005 where millions of bodies were exhumed at the massacre=sites and extermination camps across Eastern Europe in an effort to erase all evidence of the Holocaust. He was convicted at the Einsatzgruppen Trial and executed.

Riverkeeper is a non-profit environmental organization dedicated to the protection of the Hudson River and its tributaries, as well as the watersheds that provide New York City with its drinking water. It started out as the Hudson River Fisherman's Association (HRFA) in 1966, a citizen-led environmental enforcement organization founded by a group of recreational and commercial fisherman. In 1983, HRFA hired John Cronin, the first full-time Hudson Riverkeeper, to patrol the river, protect it from polluters, and enforce environmental laws. In 1986, the group officially changed its name to Riverkeeper, making it the first "keeper" group to be founded. Their movement motivated the formation of "keeper" groups across the world, protecting rivers, bays, lakes, and coastal waterways. In 1999, the Waterkeeper Alliance was created as an umbrella organization to unite and support "keeper" organizations. Two decades later, in December 2019, the network had grown to 350 members in 46 countries, with half the membership outside the U.S.; the alliance had added 200 groups in the last five years. Riverkeeper's mission is "to protect the environmental, recreational and commercial integrity of the Hudson River and its tributaries, and safeguard the drinking water of nine million New York City and Hudson Valley residents". It uses litigation, science, patrolling, citizen engagement, and legislation to accomplish its goals. Paul Gallay serves as the Riverkeeper and president of the organization.

The keluri or keledi or enkulurai (Iban language) is a free reed gourd mouth organ from East Malaysia and Kalimantan made of bamboo and gourd. Historically the keledi or keluri was played by the Orang Ulu people who come from Sarawak, Malaysia, the area northwest of the island of Borneo. Among the Iban people the instrument is called enkulurai. Other peoples that have played the instrument include the Kayan people and Kenyah people. In the 21st century, the instrument has largely disappeared; while not extinct, researchers have had a difficult time finding anyone making or using the instruments. The instrument is similar to the khaen, played by the Lao people, Thai people and Muong people of Cambodia, Thailand and Vietnam.

RAF Clee Hill

The keluri or keledi or enkulurai (Iban language) is a free reed gourd mouth organ from East Malaysia and Kalimantan made of bamboo and gourd. Historically the keledi or keluri was played by the Orang Ulu people who come from Sarawak, Malaysia, the area northwest of the island of Borneo. Among the Iban people the instrument is called enkulurai. Other peoples that have played the instrument include the Kayan people and Kenyah people. In the 21st century, the instrument has largely disappeared; while not extinct, researchers have had a difficult time finding anyone making or using the instruments.