Was Islam spread by the sword?
No.
For example:
Spread of
Islam in Albania: [1]
"According to 2011 census, 58.79% of
Albania's population adheres to
Islam, making it the largest
religionin the country. The majority of Albanian Muslims are
Sunniwith a small
BektashiShiaminority.
Christianityis practiced by 16.99% of the population, making it the 2nd largest religion in the country. The remaining population is either
irreligiousor belongs to other religious groups.
[1]During the
Ottoman rule of Albania, the majority of Albanians converted to the Muslim affiliation (Sunni and Bektashi). However, decades of
state atheismwhich ended in 1991 brought a decline in religious practice in all traditions.
A recent
Pew Research Centerdemographic study put the percentage of
Muslimsin Albania at 79.9%.
[2]However, a recent Gallup poll gives percentages of religious affiliations with only 43% Muslim, 19%
Eastern Orthodox, 15%
Catholicand 23% atheist or nonreligious.
[3]In the 2011 census the declared religious affiliation of the population was: 56.70% Sunni Muslims, 2.09% Bektashis, 10.03% Catholics, 6.75% Orthodox, 0.14% Evangelists, 0.07% other Christians, 5.49% believers without denomination, 2.05% Atheists, 13.79% undeclared.
[4]65% of Albanian Muslims are
non-denominational Muslims."
https://en.wikipedia.org/wiki/Islam_in_Albania
I don't see any sword in spread of
Islam in Albania.
Please correct me if I am wrong.
Regards