What is one of the common vehicle in the world?
bicycles
When was it invented?
1818
where?
Germany
Who made a better one then?
Kirkpatrick Macmillan
Who was he?
blacksmith
Where was he from?
Scottland
How was his wheels?
iron-covered
How about the levers?
foot-operated
Is it similar to pedals we have today?
yes
Was that bicycle fast enough?
yes
Did it resemble anything we have today?
no
Who made next improvements?
Pierre Michaux
Where was he from?
Frence
What he improved?
pedal mechanism
Which year was that?
1861
Then who made more improvements?
James Starley
What he did?
improved design
When did the bicycle looked modern day one?
1874
Who invented that?
H. J. Lawson
When the air filled tires appeared?
1893