Question: Which person from Europe was the first to witness Victoria Falls?
About the article "Victoria Falls", section "Pre-colonial history".

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Upon seeing Iguazu, the United States' First Lady Eleanor Roosevelt reportedly exclaimed "Poor Niagara!"
(which, at 50 m or 165 feet, are a third shorter).
Iguazu is also often compared with Southern Africa's Victoria Falls which separates Zambia and Zimbabwe.
Iguazu is wider, but because it is split into about 275 discrete falls and large islands, Victoria is the largest curtain of water in the world, at over wide and over in height (in low flow Victoria is split into five by islands; in high flow it can be uninterrupted).
The only wider falls are extremely large rapid-like falls such as the Boyoma Falls.
With the flooding of the Guaíra Falls in 1982, Iguazu currently has the second-greatest average annual flow of any waterfall in the world, after Niagara, with an average rate of .
Its maximum recorded flow was .
By comparison, the average flow of Niagara Falls is , with a maximum recorded flow of .
The average flow at Victoria Falls is , with a maximum recorded flow of .
Mist rises between from Iguazu's Devil's Throat, and over above Victoria.
However, Iguazu affords better views and walkways and its shape allows for spectacular vistas.
At one point a person can stand and be surrounded by 260 degrees of waterfalls.
The Devil's Throat in Argentina has water pouring into it from three sides.
Likewise, because Iguazu is split into many relatively small falls, one can view these a portion at a time.
Victoria does not allow this, as it is essentially one waterfall that falls into a canyon and is too immense to appreciate all at once (except from the air). 
Ripon Falls at the northern end of Lake Victoria in Uganda was formerly considered the source of the river Nile.
In 1862–3 John Hanning Speke was the first European to follow the course of the Nile downstream after discovering the falls that his intuition had marked as the source of the Nile.
The water from Ripon Falls falls into a narrow opening and that is where some people believe the River Nile starts.
He named the falls after George Robinson, 1st Marquess of Ripon.
The Falls functioned as a natural outlet for Lake Victoria, until in 1954 the construction of Owen Falls Dam was completed, effectively extending Lake Victoria and submerging Ripon Falls.  
History since 1900.
Victoria Falls Bridge initiates tourism.
European settlement of the Victoria Falls area started around 1900 in response to the desire of Cecil Rhodes' British South Africa Company for mineral rights and imperial rule north of the Zambezi, and the exploitation of other natural resources such as timber forests north-east of the falls, and ivory and animal skins.
Before 1905, the river was crossed above the falls at the Old Drift, by dugout canoe or a barge towed across with a steel cable.
Rhodes' vision of a Cape-Cairo railway drove plans for the first bridge across the Zambezi and he insisted it be built where the spray from the falls would fall on passing trains, so the site at the Second Gorge was chosen.
See the main article Victoria Falls Bridge for details.
From 1905 the railway offered accessible travel to whites from as far as the Cape in the south and from 1909, as far as the Belgian Congo in the north.
In 1904 the Victoria Falls Hotel was opened to accommodate visitors arriving on the new railway.
The falls became an increasingly popular attraction during British colonial rule of Northern Rhodesia (Zambia) and Southern Rhodesia (Zimbabwe), with the town of Victoria Falls becoming the main tourist centre. 
Silent Witness was trained by Tony Cruz, ridden by Felix Coetzee and owned by Mr. and Mrs. Arthur Antonio da Silva.
He made his debut as a three-year-old at the Sha Tin racecourse in a 1,000 metre race in Hong Kong.
Silent Witness won this race by a margin of almost four lengths in the fast time of 57.8 seconds.
Silent Witness was awarded the title of Most Improved Horse and Champion Griffin (inexperienced racehorse) in the Hong Kong Jockey Club awards presentation ceremony in June 2003.
In 2003 and 2004 Silent Witness won the internationally contested Hong Kong Sprint race by defeating top horses from Europe, Japan, Australia, and the United States.
In the Centenary Sprint Cup (G1), Silent Witness equalled the long-standing Hong Kong record of ten consecutive wins.
He also won six other major Group One (G1) Sprints in 2004 and 2005.
After the 17 consecutive wins, he attempted the mile race in the Champions Mile on May 2005 at Sha Tin Racecourse but he was defeated by Bullish Luck by a short head.
He made a second attempt on the mile by going to Tokyo, Japan to participate in the Yasuda Kinen in June.
Again, he ran well but was defeated by Asakusa Den'en, a Japanese horse, near the winning post.
A mile was the maximum distance that he could race and win.
On 2 October 2005, he took part in the Sprinters Stakes, which is a Group 1 Sprint Race in Japan over 1,200 metres.
Silent Witness won the race easily by 1¼ lengths with a time of 1:07.3 seconds, 0.3 seconds slower than the track record time.
For the three years from 2003 to 2005, the International Federation of Horseracing Authorities in Paris ranked Silent Witness the world's fastest sprinter.
The Hong Kong Jockey Club made a website for him, making him the first horse with its own website in Hong Kong.
The Jockey Club also sells gifts for him.
On 24 April 2005, the day Silent Witness won his 17th consecutive race, the Jockey Club gave memorial caps to people, which led to a trampling incident.
Silent Witness is sometimes compared to another Hong Kong champion, Co-Tack, and the American horse Cigar who won 16 consecutive races.
Silent Witness was retired, after his last race on the Sha Tin Racecourse on 4 February 2007.
He is now at Living Legends, the International Home of Rest for Champion Horses located in Woodlands Historic Park, Greenvale, Victoria, Australia. 
Charles Bowden is a convicted Irish criminal, who after turning state's witness in the murder of journalist Veronica Guerin, was the first person to enter Irelands's witness protection programme.