The document summarizes the history and condition of the Bartek Oak tree located in Zagnańsk, Poland. It is estimated to be 650-670 years old based on a core sample. Over the centuries it has experienced damage from fires, storms, and lightning strikes and required various restoration efforts. Currently its trunk is decaying seriously with only a 5cm thickness of healthy tissue in many areas, causing it to tilt dangerously. It remains an important natural monument.

2. It grows in Zagnańsk
near Kielce
in the Świętokrzyskie
Mountains

3.  Its age, previously
estimated at up to 1200
years, has recently
been established to be
650–670 years, with a
corer used to extract a
sample for a ring
count.
An accurate count is
impossible, as
Bartek's interior has
hollowed with age.

4. The tree now measures 30
meters in height, trunk
circumference is at a height
of 1.30 m - 9.85 m and 13.4
m from the ground, crown
spread of 20 mx 40 m, 720
m³ crown hood, pierśnica
3.14 m [2 ]. The thickness of
the whole tree is about 72
m³, roundwood thickness of
the whole tree about 65
cubic meters, including a
trunk main - approximately
46 m³

5.  1829 -. Then the estimated age is 800 years. It has 15 main
branches of considerable thickness and 16 secondary.
 1860 - Examination Bartek and preparation metrics
 1906 -fire a barn - destruction branche the eastern, damage
to other branches. Infections: czyreń oak, sulfur hub
 1920 - the first restoration work, removal of dry branches,
filling the trunk cavity with stones and lime mortar (8m3),
dead pieces of stem bark layers masked, set the fence
sztachetowego with a diameter of 7 m, displaying nesting
boxes for birds
 - 1927 - "one lower limb, reportedly broke off during quiet
under its own weight ..."( is also known that in the main
branch was struck by lightning and broke it at the base of)

6.  - 1927 - "one lower limb, reportedly broke off during quiet
under its own weight ..."( is also known that in the main
branch was struck by lightning and broke it at the base of)
 1934 - A jury chaired by Professor Wladyslaw Szafer Bartek
considered to be "the most magnificent tree in Poland
1952 - Oak Bart obtains the status of natural monument
 1953 - gusty winds broke the side branch (3.5 m3 of
roundwood), the introduction of fungicides, complement
plombu using cement (1 tonne), set two supports at the
southern branch
 1956 - set props larch
 1984 - gale broke off one of the branches

7.  1991 - (June 3) lightning strike ignites a broken upper limb
and secured. Melts "seal" of plastics. Arises also called.
lightning strip on the trunk main. Putting the northern
Konar, remove deadwood (4 mp), wound protection and
Imprexem Lacbalsamm trees, removal of the concrete seal
of Konar south, setting the filter and the grid, three bridle
July ocieniających Bartek from the west, cut two in July on
the south side Bartek.
 1999 - installation of lightning protection to protect against
lightning
- 2005 - installation of three additional steel supports
 - 2009 - Chemical analysis of soil at a depth of 10 - 30 cm
shows a deficiency of magnesium (Mg) and oxygen!,
Execution tomographic studies. Bartek condition evaluated
as bad, requiring immediate assistance!

8.  Trunk decay has
become a serious
problem: healthy tissue
thickness does not
exceed 20 cm, and in
many places is only 5
cm. Oak began to tilt
dangerously under the
weight of one of the
branches.

9.  Bartek on the trunk, from the south-
east are suspended two figures of
Christ crucified, probably cast iron in
local factories. On one of the figures
shown is the year 1853. According to
oral tradition, they were to be placed
in memory of hanging on Bartek two
officers of the January uprising.
Another version of the oral
administration of claims that a cast
had to be suspended to
commemorate the victory of Sobieski
at Vienna, and another was placed on
a memorial Bartek expiration cholera
epidemic in 1853

14. presentation prepared
by:
Magdalena Raczyńska
Paulina Manerowska