This timeline is an attempt to assemble a list of historical and natural occurrences that can be related to known ancestral data of the Ogle family, perhaps producing the conditions that was the impetus for an action.  Then I got carried away and added other data that interested me.

I am not confident of some of this data - but I present it as faithful as possible.  Credits are at bottom of first page.

One item below, for which I disagree is the year 1000:  States that Lief Ericksson was "blown off course" to arrive in America.  The sagas state that Lief Ericksson made a deliberate voyage seeking more places to settle.   Archeological evidence shows Viking settlements in Labrador and the small village of L'Anse aux Meadows on the northern tip of Newfoundland.  This may be the place of "grapes" that many deny could have been found here.  However in his time, vineyards were 300 miles farther north in England than even today.  A significant trade between the Viking settlements of Iceland, Greenland, and the American mainland and the Viking homeland flourished for some time.  But all contact with Europe stopped around 1550 when the weather became much colder and the North Atlantic could no longer be crossed.  At this moment the unsuspecting world was at the beginning of the "Little Ice age" which ran, with some warming periods,  until after 1850 which started this current warming cycle.  Europe was starving and had no time for settling North America.  What would it be like today if the "Little Ice age" had not occurred and all Viking settlements had prospered.   However, western European DNA has been identified in certain Amerindian Tribes of the Northeast.  Without contact with Europe the settlers must have merged with the local tribes.  (B.P. as now used in carbon Dating is based on the year 1950) 

Which brings me to the next disagreement:  2000 BP = 50 BC:  I don't remember my history telling me European sailors sailed any where near the monsoon regions of the world at this time in history. 
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Years A.D. -
Human Population 		Human Exploration and Activities
1900
(1.6 Billion)

Severe weather and climate events have increasing impact on society and environment as population grows from ~254 million to six billion people between the years 1000 and 2000.
 
1800
(813million)

Between 1849 and 1905, the most prolonged period of drought conditions in 300 years occurred in Arizona.
 
1700
(600m)

"Little Ice Age" chills much of Europe, with glaciers growing in the Alps threatening some mountain communities and shortening growing seasons throughout Europe. (Folland, 2001)
 
1600
(545m)

Slave trade, plantations and global commerce contribute to changes in land cover, influencing regional climate. Atmospheric CO2 levels are 6% below average Holocene level according to Crowley, 2000 .
1500
(425m)

Severe multi-decadal "mega-drought" hits American southwest, severely impacting native peoples who had only recently been invaded by Spanish conquistadors. "Lost Colony" Drought also effects settlement of Jamestown, VA, 1587-89.
1400
(350m)

Sailors from Europe and the Middle East learn to navigate the world's oceans using seasonal wind patterns later called "trade winds". The "Little Ice Age" begins to chill much of Europe.
 
1300
(360m)

Possibily linked to wetter, colder climates, Bubonic plague kills up to 20,000 people a day in Cairo. (See Stothers. 1999). Europe also hard hit. Empires thrive in Mali, Java and Uzbekistan. Minimum of solar activity during 14th Century.
1200
(360m)

1259 - Evidence of major volcanic event -- likely the largest during entire Holocene-- found in ice cores on both poles, (Crowley, 2000 ).
Great Drought (1276-1299) in American Southwest found in tree ring data impacted Ancient Pueblo and other native cultures. See Climate History.
1100
(301m)

Called "The Century of the Axe" by some historians because of the ambitious building efforts and clearing of woods for agriculture in Europe and elsewhere. Changes in land cover eventually contribute to changes in regional climate.

1000
(254m)

~1000- Leif Eriksson, returning to Viking settlements in Greenland from Europe, is blown off course and lands on the North American continent. Medieval Warm Period in Europe begins around 1000 and lasts until approximately 1350 AD.
 
Years Before Present (B.P.)
Human Population
(estimates from UNESCO)

Human Developments

1000 (950 AD)
(254-345 million) 		-Storage of rye results in occasional growth of a toxic fungal infection (ergot) known as St. Anthony’s fire that can cause hallucinations.
-Chinese develop gunpowder.
 
2000 (50 BC)
(170-300 million) 		-Spice trade becomes important.
-European sailors discover how to use monsoon patterns to their advantage.
3000 (1050 BC)
(50 million) 		-Peanuts grown in Peru. Iron age in Europe and Middle East. -Phoenicians sail in the Mediterranean while Polynesians sail the Pacific.
-Iron Age begins around 2650 years ago.
4000 (2050 BC)
(27 million) 		-Bronze smelted in Middle East, combining copper and tin, beginning the Bronze Age.
-Olives, peaches and apricots cultivated in Eastern Mediterranean.
-Drought around 2000 B.C. may have contributed to the collapse of the Akkadia civilization in Mesopotamia, which is regarded as the world's first empire. (Weiss, 1993) Evidence of drought also found along Nile in Egypt, Indus in India and in the Great Basin of western North America.
 
5,000 (3050 BC)
(14 million) 		-Five sacred crops in ancient China: soybeans, rice, wheat, barley and millet. -Sorghum used in sub-Saharan Africa.
-Egypt unified under one Pharaoh.
 
6,000 (4050 BC)
(7 million) 		-Neolithic (New Stone Age) period, with farming and elaborate stone houses built in Britain.
-Cotton grown in Pakistan, cultivated grapes in Afghanistan.
 
7,000 (5050 BC)
(5 million) 		-Squashes, beans, chili peppers and an early type of corn (Zea mays) cultivated in Meso-America.
-Domesticated rice used in China
 
8,000 (6050 BC)
(5 million) 		-Lentils, fava beans and chick peas become part of eastern Mediterranean, with Chili pepper and Lima beans being used in Peruvian highlands.
-Rising sea levels of Mediterranean Sea floods into the basin that now forms the Black Sea around 7,600 years ago. (See Climate History 10,000 years)
-Copper first smelted around this time period.
 
9,000 (7050 BC)
(5 million) 		-During Mesolithic period, semi-permanent houses are used and boats are built for transport and fishing.
-Flax in Syria and Turkey for clothing (linen) and oil.
-Abrupt climate change causes much of the planet to become cooler and drier around 8,200 years ago. (Von Grafenstein, 1998)
 
10,000 (8050 BC)
(5 million)		 - First evidence of plant domestication.
Wheat and barley developed in Near East. Barley becomes a daily food staple.
 
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Credits: These data from the National Climatic Data Center - NOAA Paleoclimentology